[PATCH] fsr: fix uninitialized fs usage after timeout

[Jeff Mahoney <jeffm@suse.com>]

In the main loop of fsrallfs, we exit when we've hit the timeout but
we increment fs before we get there.  If we're operating on the last
file system in the array, we'll hit an uninitialized fsdesc and
crash in fsrall_cleanup.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
---
 fsr/xfs_fsr.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/fsr/xfs_fsr.c b/fsr/xfs_fsr.c
index 517b75f0..e695c243 100644
--- a/fsr/xfs_fsr.c
+++ b/fsr/xfs_fsr.c
@@ -598,7 +598,7 @@ fsrallfs(char *mtab, int howlong, char *leftofffile)
 	signal(SIGTERM, aborter);

 	/* reorg for 'howlong' -- checked in 'fsrfs' */
-	while (endtime > time(0)) {
+	for (; endtime > time(0); fs->npass++, fs++) {
 		pid_t pid;
 		if (fs == fsend)
 			fs = fsbase;
@@ -629,8 +629,6 @@ fsrallfs(char *mtab, int howlong, char *leftofffile)
 			break;
 		}
 		startino = 0;  /* reset after the first time through */
-		fs->npass++;
-		fs++;
 	}
 	fsrall_cleanup(endtime <= time(0));
 }


-- 
Jeff Mahoney
SUSE Labs