From 5d085ec04a000fefb5182d3b03ee46ca96d8389b Mon Sep 17 00:00:00 2001 From: Bo YU Date: Tue, 30 Oct 2018 09:21:55 -0400 Subject: [PATCH] powerpc/boot: Fix missing check of lseek() return value This is detected by Coverity scan: CID: 1440481 Signed-off-by: Bo YU Signed-off-by: Michael Ellerman --- arch/powerpc/boot/addnote.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) 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"); -- 2.30.2