[PATCH] missing kmalloc check in qnx4fs

fs/qnx4/inode.c

@@ -324,6 +324,10 @@ static const char *qnx4_checkroot(struct super_block *sb)
 					if (!strncmp(rootdir->di_fname, QNX4_BMNAME, sizeof QNX4_BMNAME)) {
 						found = 1;
 						qnx4_sb(sb)->BitMap = kmalloc( sizeof( struct qnx4_inode_entry ), GFP_KERNEL );
+						if (!qnx4_sb(sb)->BitMap) {
+							brelse (bh);
+							return "not enough memory for bitmap inode";
+						}
 						memcpy( qnx4_sb(sb)->BitMap, rootdir, sizeof( struct qnx4_inode_entry ) );	/* keep bitmap inode known */
 						break;
 					}