[PATCH] libfrog: fix a potential null pointer dereference

["Darrick J. Wong" <darrick.wong@oracle.com>]

From: Darrick J. Wong <darrick.wong@oracle.com>

Apparently, gcc 10.2 thinks that it's possible for either of the calloc
arguments to be zero here, in which case it will return NULL with a zero
errno.  I suppose it's possible to do that via integer overflow in the
macro, though I find it unlikely unless someone passes in a yuuuge value.

Nevertheless, just shut up the warning by hardcoding the error number
so I can move on to nastier bugs.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
---
 libfrog/bulkstat.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libfrog/bulkstat.c b/libfrog/bulkstat.c
index c3e5c5f804e4..195f6ea053bd 100644
--- a/libfrog/bulkstat.c
+++ b/libfrog/bulkstat.c
@@ -428,7 +428,7 @@ xfrog_bulkstat_alloc_req(
 
 	breq = calloc(1, XFS_BULKSTAT_REQ_SIZE(nr));
 	if (!breq)
-		return -errno;
+		return -ENOMEM;
 
 	breq->hdr.icount = nr;
 	breq->hdr.ino = startino;