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| author |   Bo YU <tsu.yubo@gmail.com> | 2018-10-30 09:21:55 -0400 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2019-05-03 02:54:57 +1000 |
| commit | 5d085ec04a000fefb5182d3b03ee46ca96d8389b (patch) | |
| tree | dff3a541a35e08ed36162214bffb0b7170ec6a05 /arch/powerpc/boot/addnote.c | |
| parent | powerpc/entry: Remove unneeded need_resched() loop (diff) | |
| download | wireguard-linux-5d085ec04a000fefb5182d3b03ee46ca96d8389b.tar.xz wireguard-linux-5d085ec04a000fefb5182d3b03ee46ca96d8389b.zip | |
powerpc/boot: Fix missing check of lseek() return value
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>
Diffstat (limited to '')
| -rw-r--r-- | arch/powerpc/boot/addnote.c | 6 |
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"); |