Patchwork [U-Boot] powerpc: mpc85xx/mpc86xx: Fix off-by-one boundary checking with ARRAY_SIZE

login
register
mail settings
Submitter Axel Lin
Date May 26, 2013, 7 a.m.
Message ID <1369551630.4782.2.camel@phoenix>
Download mbox | patch
Permalink /patch/246369/
State Accepted
Delegated to: Andy Fleming
Headers show

Comments

Axel Lin - May 26, 2013, 7 a.m.
If a variable is used as array subscript, it's valid value range is
0 ... ARRAY_SIZE -1.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
---
 arch/powerpc/cpu/mpc85xx/mpc8536_serdes.c | 4 ++--
 arch/powerpc/cpu/mpc85xx/mpc8544_serdes.c | 4 ++--
 arch/powerpc/cpu/mpc85xx/mpc8548_serdes.c | 2 +-
 arch/powerpc/cpu/mpc85xx/mpc8568_serdes.c | 2 +-
 arch/powerpc/cpu/mpc85xx/mpc8569_serdes.c | 2 +-
 arch/powerpc/cpu/mpc85xx/mpc8572_serdes.c | 2 +-
 arch/powerpc/cpu/mpc85xx/p1010_serdes.c   | 4 ++--
 arch/powerpc/cpu/mpc85xx/p1021_serdes.c   | 2 +-
 arch/powerpc/cpu/mpc85xx/p1022_serdes.c   | 4 ++--
 arch/powerpc/cpu/mpc85xx/p1023_serdes.c   | 2 +-
 arch/powerpc/cpu/mpc85xx/p2020_serdes.c   | 2 +-
 arch/powerpc/cpu/mpc85xx/p2041_serdes.c   | 2 +-
 arch/powerpc/cpu/mpc85xx/p3041_serdes.c   | 2 +-
 arch/powerpc/cpu/mpc85xx/p4080_serdes.c   | 2 +-
 arch/powerpc/cpu/mpc85xx/p5020_serdes.c   | 2 +-
 arch/powerpc/cpu/mpc85xx/p5040_serdes.c   | 2 +-
 arch/powerpc/cpu/mpc85xx/t1040_serdes.c   | 2 +-
 arch/powerpc/cpu/mpc86xx/mpc8610_serdes.c | 4 ++--
 arch/powerpc/cpu/mpc86xx/mpc8641_serdes.c | 4 ++--
 19 files changed, 25 insertions(+), 25 deletions(-)
Andy Fleming - June 21, 2013, 8:48 p.m.
On Sun, May 26, 2013 at 03:00:30PM +0800, Axel Lin wrote:
> If a variable is used as array subscript, it's valid value range is
> 0 ... ARRAY_SIZE -1.
> 
> Signed-off-by: Axel Lin <axel.lin@ingics.com>

Applied, thanks!

Andy

Patch

diff --git a/arch/powerpc/cpu/mpc85xx/mpc8536_serdes.c b/arch/powerpc/cpu/mpc85xx/mpc8536_serdes.c
index 6dadeb8..ec96e81 100644
--- a/arch/powerpc/cpu/mpc85xx/mpc8536_serdes.c
+++ b/arch/powerpc/cpu/mpc85xx/mpc8536_serdes.c
@@ -228,7 +228,7 @@  void fsl_serdes_init(void)
 		break;
 	}
 
-	if (srds1_io_sel > ARRAY_SIZE(serdes1_cfg_tbl)) {
+	if (srds1_io_sel >= ARRAY_SIZE(serdes1_cfg_tbl)) {
 		printf("Invalid PORDEVSR[SRDS1_IO_SEL] = %d\n", srds1_io_sel);
 		return;
 	}
@@ -237,7 +237,7 @@  void fsl_serdes_init(void)
 		serdes1_prtcl_map |= (1 << lane_prtcl);
 	}
 
-	if (srds2_io_sel > ARRAY_SIZE(serdes2_cfg_tbl)) {
+	if (srds2_io_sel >= ARRAY_SIZE(serdes2_cfg_tbl)) {
 		printf("Invalid PORDEVSR[SRDS2_IO_SEL] = %d\n", srds2_io_sel);
 		return;
 	}
diff --git a/arch/powerpc/cpu/mpc85xx/mpc8544_serdes.c b/arch/powerpc/cpu/mpc85xx/mpc8544_serdes.c
index 7c49097..3483366 100644
--- a/arch/powerpc/cpu/mpc85xx/mpc8544_serdes.c
+++ b/arch/powerpc/cpu/mpc85xx/mpc8544_serdes.c
@@ -68,7 +68,7 @@  void fsl_serdes_init(void)
 
 	debug("PORDEVSR[IO_SEL_SRDS] = %x\n", srds_cfg);
 
-	if (srds_cfg > ARRAY_SIZE(serdes1_cfg_tbl)) {
+	if (srds_cfg >= ARRAY_SIZE(serdes1_cfg_tbl)) {
 		printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
 		return;
 	}
@@ -77,7 +77,7 @@  void fsl_serdes_init(void)
 		serdes1_prtcl_map |= (1 << lane_prtcl);
 	}
 
-	if (srds_cfg > ARRAY_SIZE(serdes2_cfg_tbl)) {
+	if (srds_cfg >= ARRAY_SIZE(serdes2_cfg_tbl)) {
 		printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
 		return;
 	}
diff --git a/arch/powerpc/cpu/mpc85xx/mpc8548_serdes.c b/arch/powerpc/cpu/mpc85xx/mpc8548_serdes.c
index 76288cd..c9eea15 100644
--- a/arch/powerpc/cpu/mpc85xx/mpc8548_serdes.c
+++ b/arch/powerpc/cpu/mpc85xx/mpc8548_serdes.c
@@ -53,7 +53,7 @@  void fsl_serdes_init(void)
 
 	debug("PORDEVSR[IO_SEL] = %x\n", srds1_cfg);
 
-	if (srds1_cfg > ARRAY_SIZE(serdes1_cfg_tbl)) {
+	if (srds1_cfg >= ARRAY_SIZE(serdes1_cfg_tbl)) {
 		printf("Invalid PORDEVSR[IO_SEL] = %d\n", srds1_cfg);
 		return ;
 	}
diff --git a/arch/powerpc/cpu/mpc85xx/mpc8568_serdes.c b/arch/powerpc/cpu/mpc85xx/mpc8568_serdes.c
index 2582637..49a0290 100644
--- a/arch/powerpc/cpu/mpc85xx/mpc8568_serdes.c
+++ b/arch/powerpc/cpu/mpc85xx/mpc8568_serdes.c
@@ -53,7 +53,7 @@  void fsl_serdes_init(void)
 
 	debug("PORDEVSR[IO_SEL_SRDS] = %x\n", srds_cfg);
 
-	if (srds_cfg > ARRAY_SIZE(serdes1_cfg_tbl)) {
+	if (srds_cfg >= ARRAY_SIZE(serdes1_cfg_tbl)) {
 		printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
 		return;
 	}
diff --git a/arch/powerpc/cpu/mpc85xx/mpc8569_serdes.c b/arch/powerpc/cpu/mpc85xx/mpc8569_serdes.c
index f480c26..7af6aff 100644
--- a/arch/powerpc/cpu/mpc85xx/mpc8569_serdes.c
+++ b/arch/powerpc/cpu/mpc85xx/mpc8569_serdes.c
@@ -62,7 +62,7 @@  void fsl_serdes_init(void)
 
 	debug("PORDEVSR[IO_SEL_SRDS] = %x\n", srds_cfg);
 
-	if (srds_cfg > ARRAY_SIZE(serdes1_cfg_tbl)) {
+	if (srds_cfg >= ARRAY_SIZE(serdes1_cfg_tbl)) {
 		printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
 		return;
 	}
diff --git a/arch/powerpc/cpu/mpc85xx/mpc8572_serdes.c b/arch/powerpc/cpu/mpc85xx/mpc8572_serdes.c
index 2ff5d9a..fcccb52 100644
--- a/arch/powerpc/cpu/mpc85xx/mpc8572_serdes.c
+++ b/arch/powerpc/cpu/mpc85xx/mpc8572_serdes.c
@@ -57,7 +57,7 @@  void fsl_serdes_init(void)
 
 	debug("PORDEVSR[IO_SEL_SRDS] = %x\n", srds_cfg);
 
-	if (srds_cfg > ARRAY_SIZE(serdes1_cfg_tbl)) {
+	if (srds_cfg >= ARRAY_SIZE(serdes1_cfg_tbl)) {
 		printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
 		return;
 	}
diff --git a/arch/powerpc/cpu/mpc85xx/p1010_serdes.c b/arch/powerpc/cpu/mpc85xx/p1010_serdes.c
index e8a0387..1f7dba0 100644
--- a/arch/powerpc/cpu/mpc85xx/p1010_serdes.c
+++ b/arch/powerpc/cpu/mpc85xx/p1010_serdes.c
@@ -54,7 +54,7 @@  void fsl_serdes_init(void)
 
 	debug("PORDEVSR[IO_SEL_SRDS] = %x\n", srds_cfg);
 
-	if (srds_cfg > ARRAY_SIZE(serdes1_cfg_tbl)) {
+	if (srds_cfg >= ARRAY_SIZE(serdes1_cfg_tbl)) {
 		printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
 		return;
 	}
@@ -63,7 +63,7 @@  void fsl_serdes_init(void)
 		serdes1_prtcl_map |= (1 << lane_prtcl);
 	}
 
-	if (srds_cfg > ARRAY_SIZE(serdes2_cfg_tbl)) {
+	if (srds_cfg >= ARRAY_SIZE(serdes2_cfg_tbl)) {
 		printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
 		return;
 	}
diff --git a/arch/powerpc/cpu/mpc85xx/p1021_serdes.c b/arch/powerpc/cpu/mpc85xx/p1021_serdes.c
index 1849c16..d6d2696 100644
--- a/arch/powerpc/cpu/mpc85xx/p1021_serdes.c
+++ b/arch/powerpc/cpu/mpc85xx/p1021_serdes.c
@@ -73,7 +73,7 @@  void fsl_serdes_init(void)
 
 	debug("PORDEVSR[IO_SEL_SRDS] = %x\n", srds_cfg);
 
-	if (srds_cfg > ARRAY_SIZE(serdes1_cfg_tbl)) {
+	if (srds_cfg >= ARRAY_SIZE(serdes1_cfg_tbl)) {
 		printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
 		return;
 	}
diff --git a/arch/powerpc/cpu/mpc85xx/p1022_serdes.c b/arch/powerpc/cpu/mpc85xx/p1022_serdes.c
index e4c9c22..ed49920 100644
--- a/arch/powerpc/cpu/mpc85xx/p1022_serdes.c
+++ b/arch/powerpc/cpu/mpc85xx/p1022_serdes.c
@@ -93,7 +93,7 @@  void fsl_serdes_init(void)
 
 	debug("PORDEVSR[IO_SEL_SRDS] = %x\n", srds_cfg);
 
-	if (srds_cfg > ARRAY_SIZE(serdes1_cfg_tbl)) {
+	if (srds_cfg >= ARRAY_SIZE(serdes1_cfg_tbl)) {
 		printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
 		return;
 	}
@@ -102,7 +102,7 @@  void fsl_serdes_init(void)
 		serdes1_prtcl_map |= (1 << lane_prtcl);
 	}
 
-	if (srds_cfg > ARRAY_SIZE(serdes2_cfg_tbl)) {
+	if (srds_cfg >= ARRAY_SIZE(serdes2_cfg_tbl)) {
 		printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
 		return;
 	}
diff --git a/arch/powerpc/cpu/mpc85xx/p1023_serdes.c b/arch/powerpc/cpu/mpc85xx/p1023_serdes.c
index c8ab5d6..0b4ae90 100644
--- a/arch/powerpc/cpu/mpc85xx/p1023_serdes.c
+++ b/arch/powerpc/cpu/mpc85xx/p1023_serdes.c
@@ -41,7 +41,7 @@  void fsl_serdes_init(void)
 
 	debug("PORDEVSR[IO_SEL_SRDS] = %x\n", srds_cfg);
 
-	if (srds_cfg > ARRAY_SIZE(serdes1_cfg_tbl)) {
+	if (srds_cfg >= ARRAY_SIZE(serdes1_cfg_tbl)) {
 		printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
 		return;
 	}
diff --git a/arch/powerpc/cpu/mpc85xx/p2020_serdes.c b/arch/powerpc/cpu/mpc85xx/p2020_serdes.c
index 389ff6b..01af333 100644
--- a/arch/powerpc/cpu/mpc85xx/p2020_serdes.c
+++ b/arch/powerpc/cpu/mpc85xx/p2020_serdes.c
@@ -61,7 +61,7 @@  void fsl_serdes_init(void)
 
 	debug("PORDEVSR[IO_SEL_SRDS] = %x\n", srds_cfg);
 
-	if (srds_cfg > ARRAY_SIZE(serdes1_cfg_tbl)) {
+	if (srds_cfg >= ARRAY_SIZE(serdes1_cfg_tbl)) {
 		printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
 		return;
 	}
diff --git a/arch/powerpc/cpu/mpc85xx/p2041_serdes.c b/arch/powerpc/cpu/mpc85xx/p2041_serdes.c
index eec4ffe..87335c9 100644
--- a/arch/powerpc/cpu/mpc85xx/p2041_serdes.c
+++ b/arch/powerpc/cpu/mpc85xx/p2041_serdes.c
@@ -90,7 +90,7 @@  int is_serdes_prtcl_valid(u32 prtcl)
 	u32 svr = get_svr();
 	u32 ver = SVR_SOC_VER(svr);
 
-	if (prtcl > ARRAY_SIZE(serdes_cfg_tbl))
+	if (prtcl >= ARRAY_SIZE(serdes_cfg_tbl))
 		return 0;
 
 	/* P2040[e] does not support XAUI */
diff --git a/arch/powerpc/cpu/mpc85xx/p3041_serdes.c b/arch/powerpc/cpu/mpc85xx/p3041_serdes.c
index fba9ff2..a36dcd5 100644
--- a/arch/powerpc/cpu/mpc85xx/p3041_serdes.c
+++ b/arch/powerpc/cpu/mpc85xx/p3041_serdes.c
@@ -139,7 +139,7 @@  enum srds_prtcl serdes_get_prtcl(int cfg, int lane)
 int is_serdes_prtcl_valid(u32 prtcl) {
 	int i;
 
-	if (prtcl > ARRAY_SIZE(serdes_cfg_tbl))
+	if (prtcl >= ARRAY_SIZE(serdes_cfg_tbl))
 		return 0;
 
 	for (i = 0; i < SRDS_MAX_LANES; i++) {
diff --git a/arch/powerpc/cpu/mpc85xx/p4080_serdes.c b/arch/powerpc/cpu/mpc85xx/p4080_serdes.c
index 87bd795..94ec445 100644
--- a/arch/powerpc/cpu/mpc85xx/p4080_serdes.c
+++ b/arch/powerpc/cpu/mpc85xx/p4080_serdes.c
@@ -86,7 +86,7 @@  enum srds_prtcl serdes_get_prtcl(int cfg, int lane)
 int is_serdes_prtcl_valid(u32 prtcl) {
 	int i;
 
-	if (prtcl > ARRAY_SIZE(serdes_cfg_tbl))
+	if (prtcl >= ARRAY_SIZE(serdes_cfg_tbl))
 		return 0;
 
 	for (i = 0; i < SRDS_MAX_LANES; i++) {
diff --git a/arch/powerpc/cpu/mpc85xx/p5020_serdes.c b/arch/powerpc/cpu/mpc85xx/p5020_serdes.c
index fba9ff2..a36dcd5 100644
--- a/arch/powerpc/cpu/mpc85xx/p5020_serdes.c
+++ b/arch/powerpc/cpu/mpc85xx/p5020_serdes.c
@@ -139,7 +139,7 @@  enum srds_prtcl serdes_get_prtcl(int cfg, int lane)
 int is_serdes_prtcl_valid(u32 prtcl) {
 	int i;
 
-	if (prtcl > ARRAY_SIZE(serdes_cfg_tbl))
+	if (prtcl >= ARRAY_SIZE(serdes_cfg_tbl))
 		return 0;
 
 	for (i = 0; i < SRDS_MAX_LANES; i++) {
diff --git a/arch/powerpc/cpu/mpc85xx/p5040_serdes.c b/arch/powerpc/cpu/mpc85xx/p5040_serdes.c
index 890b88e..d646e85 100644
--- a/arch/powerpc/cpu/mpc85xx/p5040_serdes.c
+++ b/arch/powerpc/cpu/mpc85xx/p5040_serdes.c
@@ -105,7 +105,7 @@  int is_serdes_prtcl_valid(u32 prtcl)
 {
 	int i;
 
-	if (prtcl > ARRAY_SIZE(serdes_cfg_tbl))
+	if (prtcl >= ARRAY_SIZE(serdes_cfg_tbl))
 		return 0;
 
 	for (i = 0; i < SRDS_MAX_LANES; i++) {
diff --git a/arch/powerpc/cpu/mpc85xx/t1040_serdes.c b/arch/powerpc/cpu/mpc85xx/t1040_serdes.c
index 8261e03..19add9f 100644
--- a/arch/powerpc/cpu/mpc85xx/t1040_serdes.c
+++ b/arch/powerpc/cpu/mpc85xx/t1040_serdes.c
@@ -81,7 +81,7 @@  int is_serdes_prtcl_valid(int serdes, u32 prtcl)
 {
 	int i;
 
-	if (prtcl > (ARRAY_SIZE(serdes_cfg_tbl[serdes])))
+	if (prtcl >= ARRAY_SIZE(serdes_cfg_tbl[serdes]))
 		return 0;
 
 	for (i = 0; i < SRDS_MAX_LANES; i++) {
diff --git a/arch/powerpc/cpu/mpc86xx/mpc8610_serdes.c b/arch/powerpc/cpu/mpc86xx/mpc8610_serdes.c
index 0dc1975..0342e34 100644
--- a/arch/powerpc/cpu/mpc86xx/mpc8610_serdes.c
+++ b/arch/powerpc/cpu/mpc86xx/mpc8610_serdes.c
@@ -64,7 +64,7 @@  void fsl_serdes_init(void)
 
 	debug("PORDEVSR[IO_SEL_SRDS] = %x\n", srds_cfg);
 
-	if (srds_cfg > ARRAY_SIZE(serdes1_cfg_tbl)) {
+	if (srds_cfg >= ARRAY_SIZE(serdes1_cfg_tbl)) {
 		printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
 		return;
 	}
@@ -73,7 +73,7 @@  void fsl_serdes_init(void)
 		serdes1_prtcl_map |= (1 << lane_prtcl);
 	}
 
-	if (srds_cfg > ARRAY_SIZE(serdes2_cfg_tbl)) {
+	if (srds_cfg >= ARRAY_SIZE(serdes2_cfg_tbl)) {
 		printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
 		return;
 	}
diff --git a/arch/powerpc/cpu/mpc86xx/mpc8641_serdes.c b/arch/powerpc/cpu/mpc86xx/mpc8641_serdes.c
index 3ae9069..21c5ddb 100644
--- a/arch/powerpc/cpu/mpc86xx/mpc8641_serdes.c
+++ b/arch/powerpc/cpu/mpc86xx/mpc8641_serdes.c
@@ -73,7 +73,7 @@  void fsl_serdes_init(void)
 
 	debug("PORDEVSR[IO_SEL_SRDS] = %x\n", srds_cfg);
 
-	if (srds_cfg > ARRAY_SIZE(serdes1_cfg_tbl)) {
+	if (srds_cfg >= ARRAY_SIZE(serdes1_cfg_tbl)) {
 		printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
 		return;
 	}
@@ -82,7 +82,7 @@  void fsl_serdes_init(void)
 		serdes1_prtcl_map |= (1 << lane_prtcl);
 	}
 
-	if (srds_cfg > ARRAY_SIZE(serdes2_cfg_tbl)) {
+	if (srds_cfg >= ARRAY_SIZE(serdes2_cfg_tbl)) {
 		printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
 		return;
 	}