Merge tag 'upstream-4.1-rc1' of git://git.infradead.org/linux-ubifs

Pull UBI/UBIFS updates from Richard Weinberger:
 "This pull request includes the following UBI/UBIFS changes:

   - powercut emulation for UBI
   - a huge update to UBI Fastmap
   - cleanups and bugfixes all over UBI and UBIFS"

* tag 'upstream-4.1-rc1' of git://git.infradead.org/linux-ubifs: (50 commits)
  UBI: power cut emulation for testing
  UBIFS: fix output format of INUM_WATERMARK
  UBI: Fastmap: Fall back to scanning mode after ECC error
  UBI: Fastmap: Remove is_fm_block()
  UBI: Fastmap: Add blank line after declarations
  UBI: Fastmap: Remove else after return.
  UBI: Fastmap: Introduce may_reserve_for_fm()
  UBI: Fastmap: Introduce ubi_fastmap_init()
  UBI: Fastmap: Wire up WL accessor functions
  UBI: Add accessor functions for WL data structures
  UBI: Move fastmap specific functions out of wl.c
  UBI: Fastmap: Add new module parameter fm_debug
  UBI: Fastmap: Make self_check_eba() depend on fastmap self checking
  UBI: Fastmap: Add self check to detect absent PEBs
  UBI: Fix stale pointers in ubi->lookuptbl
  UBI: Fastmap: Enhance fastmap checking
  UBI: Add initial support for fastmap self checks
  UBI: Fastmap: Rework fastmap error paths
  UBI: Fastmap: Prepare for variable sized fastmaps
  UBI: Fastmap: Locking updates
  ...

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/mtd/ubi/cdev.c b/drivers/mtd/ubi/cdev.c
index d647e504f9b1..d16fccf79179 100644
--- a/drivers/mtd/ubi/cdev.c
+++ b/drivers/mtd/ubi/cdev.c
@@ -455,7 +455,7 @@ static long vol_cdev_ioctl(struct file *file, unsigned int cmd,
 		/* Validate the request */
 		err = -EINVAL;
 		if (req.lnum < 0 || req.lnum >= vol->reserved_pebs ||
-		    req.bytes < 0 || req.lnum >= vol->usable_leb_size)
+		    req.bytes < 0 || req.bytes > vol->usable_leb_size)
 			break;
 
 		err = get_exclusive(desc);