From eb9834599c8c9764bb3e711b6f291b10797eff27 Mon Sep 17 00:00:00 2001 From: Xiao Ni Date: Fri, 26 Jul 2024 15:14:13 +0800 Subject: [PATCH 147/157] mdadm/super1: fix coverity issue CHECKED_RETURN It needs to check return value when functions return value. Signed-off-by: Xiao Ni Signed-off-by: Mariusz Tkaczyk --- super1.c | 20 ++++++++++++++++---- 1 file changed, 16 insertions(+), 4 deletions(-) diff --git a/super1.c b/super1.c index 81d29a65..4e4c7bfd 100644 --- a/super1.c +++ b/super1.c @@ -260,7 +260,10 @@ static int aread(struct align_fd *afd, void *buf, int len) n = read(afd->fd, b, iosize); if (n <= 0) return n; - lseek(afd->fd, len - n, 1); + if (lseek(afd->fd, len - n, 1) < 0) { + pr_err("lseek fails\n"); + return -1; + } if (n > len) n = len; memcpy(buf, b, n); @@ -294,14 +297,20 @@ static int awrite(struct align_fd *afd, void *buf, int len) n = read(afd->fd, b, iosize); if (n <= 0) return n; - lseek(afd->fd, -n, 1); + if (lseek(afd->fd, -n, 1) < 0) { + pr_err("lseek fails\n"); + return -1; + } } memcpy(b, buf, len); n = write(afd->fd, b, iosize); if (n <= 0) return n; - lseek(afd->fd, len - n, 1); + if (lseek(afd->fd, len - n, 1) < 0) { + pr_err("lseek fails\n"); + return -1; + } return len; } @@ -2667,7 +2676,10 @@ static int locate_bitmap1(struct supertype *st, int fd, int node_num) } if (mustfree) free(sb); - lseek64(fd, offset<<9, 0); + if (lseek64(fd, offset<<9, 0) < 0) { + pr_err("lseek fails\n"); + ret = -1; + } return ret; } -- 2.41.0