author: Jann Horn <jannh@google.com> 2020-10-15 20:12:43 -0700
committer: Linus Torvalds <torvalds@linux-foundation.org> 2020-10-16 11:11:21 -0700
commit: df0c09c0117300cd03f6e8532527bf591d4eee65
parent: 8f942eea12ae8c5a7cde85c145234b25e38de959
Commit Summary:
Diffstat:
1 file changed, 9 insertions, 11 deletions
diff --git a/fs/coredump.c b/fs/coredump.c
index 76e7c10edfc0..5e24c06092c9 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -840,17 +840,17 @@ int dump_emit(struct coredump_params *cprm, const void *addr, int nr)
ssize_t n;
if (cprm->written + nr > cprm->limit)
return 0;
- while (nr) {
- if (dump_interrupted())
- return 0;
- n = __kernel_write(file, addr, nr, &pos);
- if (n <= 0)
- return 0;
- file->f_pos = pos;
- cprm->written += n;
- cprm->pos += n;
- nr -= n;
- }
+
+
+ if (dump_interrupted())
+ return 0;
+ n = __kernel_write(file, addr, nr, &pos);
+ if (n != nr)
+ return 0;
+ file->f_pos = pos;
+ cprm->written += n;
+ cprm->pos += n;
+
return 1;
}
EXPORT_SYMBOL(dump_emit);