From: Luis de Bethencourt Date: Sat, 23 Jul 2016 12:36:42 +0000 (+1000) Subject: befs: check return of sb_min_blocksize X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=976596f9bef918ab04b8a99f5652627eeb0d126a;p=deliverable%2Flinux.git befs: check return of sb_min_blocksize Confirm sb_min_blocksize() succeeded before continuing. Link: http://lkml.kernel.org/r/1465700235-22881-1-git-send-email-luisbg@osg.samsung.com Signed-off-by: Luis de Bethencourt Signed-off-by: Andrew Morton --- diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c index c734f21fd581..453bb68da219 100644 --- a/fs/befs/linuxvfs.c +++ b/fs/befs/linuxvfs.c @@ -756,6 +756,7 @@ befs_fill_super(struct super_block *sb, void *data, int silent) long ret = -EINVAL; const unsigned long sb_block = 0; const off_t x86_sb_off = 512; + int blocksize; save_mount_options(sb, data); @@ -788,7 +789,11 @@ befs_fill_super(struct super_block *sb, void *data, int silent) * least 1k to get the second 512 bytes of the volume. * -WD 10-26-01 */ - sb_min_blocksize(sb, 1024); + blocksize = sb_min_blocksize(sb, 1024); + if (!blocksize) { + befs_error(sb, "unable to set blocksize"); + goto unacquire_priv_sbp; + } if (!(bh = sb_bread(sb, sb_block))) { if (!silent)