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[09/10] badblocks: print warning if set_o_direct() fails

Message ID 1389106394-31898-9-git-send-email-tytso@mit.edu
State Accepted, archived
Headers show

Commit Message

Theodore Ts'o Jan. 7, 2014, 2:53 p.m. UTC 
Addresses-Coverity-Id: #1049148

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
 misc/badblocks.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
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Patch

diff --git a/misc/badblocks.c b/misc/badblocks.c
index 912ef28..e5024f6 100644
--- a/misc/badblocks.c
+++ b/misc/badblocks.c
@@ -300,7 +300,8 @@  static void set_o_direct(int dev, unsigned char *buffer, size_t size,
 		flag = fcntl(dev, F_GETFL);
 		if (flag > 0) {
 			flag = (flag & ~O_DIRECT) | new_flag;
-			fcntl(dev, F_SETFL, flag);
+			if (fcntl(dev, F_SETFL, flag) < 0)
+				perror("set_o_direct");
 		}
 		current_O_DIRECT = new_flag;
 	}