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ad96a7a7ea
linux/drivers/block
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Julia Lawall ad96a7a7ea drivers/block: use memdup_user 
Use memdup_user when user data is immediately copied into the
allocated region.  Some checkpatch cleanups in nearby code.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression from,to,size,flag;
position p;
identifier l1,l2;
@@

-  to = \(kmalloc@p\|kzalloc@p\)(size,flag);
+  to = memdup_user(from,size);
   if (
-      to==NULL
+      IS_ERR(to)
                 || ...) {
   <+... when != goto l1;
-  -ENOMEM
+  PTR_ERR(to)
   ...+>
   }
-  if (copy_from_user(to, from, size) != 0) {
-    <+... when != goto l2;
-    -EFAULT
-    ...+>
-  }
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Cc: Chirag Kantharia <chirag.kantharia@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2010-08-07 18:52:31 +02:00
..
aoe block: push down BKL into .open and .release 2010-08-07 18:25:34 +02:00
drbd block: push down BKL into .open and .release 2010-08-07 18:25:34 +02:00
paride block: push down BKL into .open and .release 2010-08-07 18:25:34 +02:00
amiflop.c block: push down BKL into .open and .release 2010-08-07 18:25:34 +02:00
ataflop.c block: push down BKL into .open and .release 2010-08-07 18:25:34 +02:00
brd.c block: push down BKL into .locked_ioctl 2010-08-07 18:25:00 +02:00
cciss_cmd.h cciss: fix hard reset code. 2010-08-07 18:52:30 +02:00
cciss_scsi.c cciss: change printks to dev_warn, etc. 2010-08-07 18:52:30 +02:00
cciss_scsi.h cciss: remove C99-style comments 2010-02-22 13:44:45 +01:00
cciss.c cciss: cleanup interrupt_not_for_us 2010-08-07 18:52:30 +02:00
cciss.h cciss: use consistent variable names 2010-08-07 18:52:30 +02:00
cpqarray.c drivers/block: use memdup_user 2010-08-07 18:52:31 +02:00
cpqarray.h
cryptoloop.c drivers: Remove unnecessary inclusions of asm/semaphore.h 2008-04-18 22:16:32 -04:00
DAC960.c block: push down BKL into .open and .release 2010-08-07 18:25:34 +02:00
DAC960.h Fix DAC960 driver on machines which don't support 64-bit DMA 2007-09-11 17:21:19 -07:00
floppy.c block: push down BKL into .open and .release 2010-08-07 18:25:34 +02:00
hd.c block: remove wrappers for request type/flags 2010-08-07 18:17:56 +02:00
ida_cmd.h
ida_ioctl.h
Kconfig paride: fix menu indentation 2010-05-11 09:02:55 +02:00
loop.c block: push down BKL into .open and .release 2010-08-07 18:25:34 +02:00
Makefile The DRBD driver 2009-10-01 21:17:49 +02:00
mg_disk.c block: remove wrappers for request type/flags 2010-08-07 18:17:56 +02:00
nbd.c block: push down BKL into .locked_ioctl 2010-08-07 18:25:00 +02:00
osdblk.c block: remove q->prepare_flush_fn completely 2010-08-07 18:24:15 +02:00
pktcdvd.c block: push down BKL into .open and .release 2010-08-07 18:25:34 +02:00
ps3disk.c block: remove q->prepare_flush_fn completely 2010-08-07 18:24:15 +02:00
ps3vram.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
smart1,2.h
sunvdc.c block: Consolidate phys_segment and hw_segment limits 2010-02-26 13:58:08 +01:00
swim3.c block: push down BKL into .open and .release 2010-08-07 18:25:34 +02:00
swim_asm.S m68k: mac - Add SWIM floppy support 2009-03-26 21:15:27 +01:00
swim.c block: push down BKL into .open and .release 2010-08-07 18:25:34 +02:00
sx8.c block: Consolidate phys_segment and hw_segment limits 2010-02-26 13:58:08 +01:00
ub.c block: push down BKL into .open and .release 2010-08-07 18:25:34 +02:00
umem.c block: unify flags for struct bio and struct request 2010-08-07 18:20:39 +02:00
umem.h drivers/block/umem: trim trailing whitespace 2007-10-10 09:25:59 +02:00
viodasd.c block: push down BKL into .open and .release 2010-08-07 18:25:34 +02:00
virtio_blk.c block: push down BKL into .locked_ioctl 2010-08-07 18:25:00 +02:00
xd.c block: push down BKL into .locked_ioctl 2010-08-07 18:25:00 +02:00
xd.h [PATCH] switch xd 2008-10-21 07:48:11 -04:00
xen-blkfront.c blkfront: Klog the unclean release path 2010-08-07 18:51:21 +02:00
xsysace.c block: push down BKL into .open and .release 2010-08-07 18:25:34 +02:00
z2ram.c block: push down BKL into .open and .release 2010-08-07 18:25:34 +02:00