| Message ID | Pine.LNX.4.64.1010021636330.21879@ask.diku.dk |
|---|---|
| State | Accepted, archived |
| Delegated to: | David Miller |
| Headers | show |
From: Julia Lawall <julia@diku.dk> Date: Sat, 2 Oct 2010 16:37:07 +0200 (CEST) > This code does not call deinit_card(card); in an error case, as done in > other error-handling code in the same function. But actually, the called > function init_sram can only return 0, so there is no need for the error > check at all. > > init_sram is also given a void return type, and its single return statement > at the end of the function is dropped. > > A simplified version of the sematic match that finds this problem is as > follows: (http://coccinelle.lip6.fr/) ... > Signed-off-by: Julia Lawall <julia@diku.dk> Applied, thank you. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/atm/idt77252.c b/drivers/atm/idt77252.c index 1679cbf..bce5732 100644 --- a/drivers/atm/idt77252.c +++ b/drivers/atm/idt77252.c @@ -3152,7 +3152,7 @@ deinit_card(struct idt77252_dev *card) } -static int __devinit +static void __devinit init_sram(struct idt77252_dev *card) { int i; @@ -3298,7 +3298,6 @@ init_sram(struct idt77252_dev *card) SAR_REG_RXFD); IPRINTK("%s: SRAM initialization complete.\n", card->name); - return 0; } static int __devinit @@ -3410,8 +3409,7 @@ init_card(struct atm_dev *dev) writel(readl(SAR_REG_CFG) | conf, SAR_REG_CFG); - if (init_sram(card) < 0) - return -1; + init_sram(card); /********************************************************************/ /* A L L O C R A M A N D S E T V A R I O U S T H I N G S */
This code does not call deinit_card(card); in an error case, as done in other error-handling code in the same function. But actually, the called function init_sram can only return 0, so there is no need for the error check at all. init_sram is also given a void return type, and its single return statement at the end of the function is dropped. A simplified version of the sematic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r exists@ @r@ statement S1,S2,S3; constant C1,C2,C3; @@ *if (...) {... S1 return -C1;} ... *if (...) {... when != S1 return -C2;} ... *if (...) {... S1 return -C3;} // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> --- drivers/atm/idt77252.c | 6 ++---- 1 files changed, 2 insertions(+), 4 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html