Merge tag 'for-linus-20150216' of git://git.infradead.org/linux-mtd

Pull MTD updates from Brian Norris:
 "NAND:

   - Add new Hisilicon NAND driver for Hip04
   - Add default reboot handler, to ensure all outstanding erase
     transactions complete in time
   - jz4740: convert to use GPIO descriptor API
   - Atmel: add support for sama5d4
   - Change default bitflip threshold to 75% of correction strength
   - Miscellaneous cleanups and bugfixes

  SPI NOR:

   - Freescale QuadSPI:
   - Fix a few probe() and remove() issues
   - Add a MAINTAINERS entry for this driver
   - Tweak transfer size to increase read performance
   - Add suspend/resume support
   - Add Micron quad I/O support
   - ST FSM SPI: miscellaneous fixes

  JFFS2:

   - gracefully handle corrupted 'offset' field found on flash

  Other:

   - bcm47xxpart: add tweaks for a few new devices
   - mtdconcat: set return lengths properly for mtd_write_oob()
   - map_ram: enable use with mtdoops
   - maps: support fallback to ROM/UBI for write-protected NOR flash"

* tag 'for-linus-20150216' of git://git.infradead.org/linux-mtd: (46 commits)
  mtd: hisilicon: && vs & typo
  jffs2: fix handling of corrupted summary length
  mtd: hisilicon: add device tree binding documentation
  mtd: hisilicon: add a new NAND controller driver for hisilicon hip04 Soc
  mtd: avoid registering reboot notifier twice
  mtd: concat: set the return lengths properly
  mtd: kconfig: replace PPC_OF with PPC
  mtd: denali: remove unnecessary stubs
  mtd: nand: remove redundant local variable
  MAINTAINERS: add maintainer entry for FREESCALE QUAD SPI driver
  mtd: fsl-quadspi: improve read performance by increase AHB transfer size
  mtd: fsl-quadspi: Remove unnecessary 'map_failed' label
  mtd: fsl-quadspi: Remove unneeded success/error messages
  mtd: fsl-quadspi: Fix the error paths
  mtd: nand: omap: drop condition with no effect
  mtd: nand: jz4740: Convert to GPIO descriptor API
  mtd: nand: Request strength instead of bytes for soft BCH
  mtd: nand: default bitflip-reporting threshold to 75% of correction strength
  mtd: atmel_nand: introduce a new compatible string for sama5d4 chip
  mtd: atmel_nand: return max bitflips in all sectors in pmecc_correction()
  ...

2 files changed, 5 insertions, 5 deletions

diff --git a/fs/jffs2/compr_rubin.c b/fs/jffs2/compr_rubin.c
index 92e0644bf867..556de100ebd5 100644
--- a/fs/jffs2/compr_rubin.c
+++ b/fs/jffs2/compr_rubin.c
@@ -84,11 +84,6 @@ static inline int pullbit(struct pushpull *pp)
 	return bit;
 }
 
-static inline int pulledbits(struct pushpull *pp)
-{
-	return pp->ofs;
-}
-
 
 static void init_rubin(struct rubin_state *rs, int div, int *bits)
 {
diff --git a/fs/jffs2/scan.c b/fs/jffs2/scan.c
index 7654e87b0428..9ad5ba4b299b 100644
--- a/fs/jffs2/scan.c
+++ b/fs/jffs2/scan.c
@@ -510,6 +510,10 @@ static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblo
 				sumlen = c->sector_size - je32_to_cpu(sm->offset);
 				sumptr = buf + buf_size - sumlen;
 
+				/* sm->offset maybe wrong but MAGIC maybe right */
+				if (sumlen > c->sector_size)
+					goto full_scan;
+
 				/* Now, make sure the summary itself is available */
 				if (sumlen > buf_size) {
 					/* Need to kmalloc for this. */
@@ -544,6 +548,7 @@ static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblo
 		}
 	}
 
+full_scan:
 	buf_ofs = jeb->offset;
 
 	if (!buf_size) {