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authorBo YU <tsu.yubo@gmail.com>2018-10-30 09:21:55 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-05-31 06:48:14 -0700
commitbfcbe50579658e6bbe8a5ef0287b37c822e9c8cc (patch)
tree53eb6de1e0f9e3a1bc88339a4d0cfaea651de00a /arch/powerpc
parentda8db898f9204598d64bd6971d9c0701f1b95830 (diff)
powerpc/boot: Fix missing check of lseek() return value
[ Upstream commit 5d085ec04a000fefb5182d3b03ee46ca96d8389b ] This is detected by Coverity scan: CID: 1440481 Signed-off-by: Bo YU <tsu.yubo@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/boot/addnote.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/powerpc/boot/addnote.c b/arch/powerpc/boot/addnote.c
index 9d9f6f334d3c..3da3e2b1b51b 100644
--- a/arch/powerpc/boot/addnote.c
+++ b/arch/powerpc/boot/addnote.c
@@ -223,7 +223,11 @@ main(int ac, char **av)
PUT_16(E_PHNUM, np + 2);
/* write back */
- lseek(fd, (long) 0, SEEK_SET);
+ i = lseek(fd, (long) 0, SEEK_SET);
+ if (i < 0) {
+ perror("lseek");
+ exit(1);
+ }
i = write(fd, buf, n);
if (i < 0) {
perror("write");