From: Pekka Enberg Date: Thu, 30 Jun 2005 09:59:04 +0000 (-0700) Subject: [PATCH] freevxfs: fix buffer_head leak X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=ba03bda81e160b2724451074cdcb597d14f7d7e0;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git [PATCH] freevxfs: fix buffer_head leak - fix a buffer_head leak in vxfs_getfsh() - s/SLAB_KERNEL/GFP_KERNEL/ - check sb_bread() return value - drop pointless buffer-mapped() test. Signed-off-by: Pekka Enberg Cc: Christoph Hellwig Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/fs/freevxfs/vxfs_fshead.c b/fs/freevxfs/vxfs_fshead.c index 05b19f70bf97..6dee109aeea4 100644 --- a/fs/freevxfs/vxfs_fshead.c +++ b/fs/freevxfs/vxfs_fshead.c @@ -78,17 +78,18 @@ vxfs_getfsh(struct inode *ip, int which) struct buffer_head *bp; bp = vxfs_bread(ip, which); - if (buffer_mapped(bp)) { + if (bp) { struct vxfs_fsh *fhp; - if (!(fhp = kmalloc(sizeof(*fhp), SLAB_KERNEL))) - return NULL; + if (!(fhp = kmalloc(sizeof(*fhp), GFP_KERNEL))) + goto out; memcpy(fhp, bp->b_data, sizeof(*fhp)); - brelse(bp); + put_bh(bp); return (fhp); } - +out: + brelse(bp); return NULL; }