Merge tag 'for-linus-20140405' of git://git.infradead.org/linux-mtd

Pull MTD updates from Brian Norris:
 - A few SPI NOR ID definitions
 - Kill the NAND "max pagesize" restriction
 - Fix some x16 bus-width NAND support
 - Add NAND JEDEC parameter page support
 - DT bindings for NAND ECC
 - GPMI NAND updates (subpage reads)
 - More OMAP NAND refactoring
 - New STMicro SPI NOR driver (now in 40 patches!)
 - A few other random bugfixes

* tag 'for-linus-20140405' of git://git.infradead.org/linux-mtd: (120 commits)
  Fix index regression in nand_read_subpage
  mtd: diskonchip: mem resource name is not optional
  mtd: nand: fix mention to CONFIG_MTD_NAND_ECC_BCH
  mtd: nand: fix GET/SET_FEATURES address on 16-bit devices
  mtd: omap2: Use devm_ioremap_resource()
  mtd: denali_dt: Use devm_ioremap_resource()
  mtd: devices: elm: update DRIVER_NAME as "omap-elm"
  mtd: devices: elm: configure parallel channels based on ecc_steps
  mtd: devices: elm: clean elm_load_syndrome
  mtd: devices: elm: check for hardware engine's design constraints
  mtd: st_spi_fsm: Succinctly reorganise .remove()
  mtd: st_spi_fsm: Allow loop to run at least once before giving up CPU
  mtd: st_spi_fsm: Correct vendor name spelling issue - missing "M"
  mtd: st_spi_fsm: Avoid duplicating MTD core code
  mtd: st_spi_fsm: Remove useless consts from function arguments
  mtd: st_spi_fsm: Convert ST SPI FSM (NOR) Flash driver to new DT partitions
  mtd: st_spi_fsm: Move runtime configurable msg sequences into device's struct
  mtd: st_spi_fsm: Supply the W25Qxxx chip specific configuration call-back
  mtd: st_spi_fsm: Supply the S25FLxxx chip specific configuration call-back
  mtd: st_spi_fsm: Supply the MX25xxx chip specific configuration call-back
  ...

4 files changed, 19 insertions, 10 deletions

diff --git a/fs/jffs2/compr_rtime.c b/fs/jffs2/compr_rtime.c
index 16a5047..406d9cc 100644
--- a/fs/jffs2/compr_rtime.c
+++ b/fs/jffs2/compr_rtime.c
@@ -33,7 +33,7 @@ static int jffs2_rtime_compress(unsigned char *data_in,
 				unsigned char *cpage_out,
 				uint32_t *sourcelen, uint32_t *dstlen)
 {
-	short positions[256];
+	unsigned short positions[256];
 	int outpos = 0;
 	int pos=0;
 
@@ -74,7 +74,7 @@ static int jffs2_rtime_decompress(unsigned char *data_in,
 				  unsigned char *cpage_out,
 				  uint32_t srclen, uint32_t destlen)
 {
-	short positions[256];
+	unsigned short positions[256];
 	int outpos = 0;
 	int pos=0;
 
diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c
index f739915..601afd1 100644
--- a/fs/jffs2/fs.c
+++ b/fs/jffs2/fs.c
@@ -457,12 +457,14 @@ struct inode *jffs2_new_inode (struct inode *dir_i, umode_t mode, struct jffs2_r
 	   The umask is only applied if there's no default ACL */
 	ret = jffs2_init_acl_pre(dir_i, inode, &mode);
 	if (ret) {
-	    make_bad_inode(inode);
-	    iput(inode);
-	    return ERR_PTR(ret);
+		mutex_unlock(&f->sem);
+		make_bad_inode(inode);
+		iput(inode);
+		return ERR_PTR(ret);
 	}
 	ret = jffs2_do_new_inode (c, f, mode, ri);
 	if (ret) {
+		mutex_unlock(&f->sem);
 		make_bad_inode(inode);
 		iput(inode);
 		return ERR_PTR(ret);
@@ -479,6 +481,7 @@ struct inode *jffs2_new_inode (struct inode *dir_i, umode_t mode, struct jffs2_r
 	inode->i_size = 0;
 
 	if (insert_inode_locked(inode) < 0) {
+		mutex_unlock(&f->sem);
 		make_bad_inode(inode);
 		iput(inode);
 		return ERR_PTR(-EINVAL);
diff --git a/fs/jffs2/nodelist.h b/fs/jffs2/nodelist.h
index e4619b0..fa35ff7 100644
--- a/fs/jffs2/nodelist.h
+++ b/fs/jffs2/nodelist.h
@@ -231,7 +231,7 @@ struct jffs2_tmp_dnode_info
 	uint32_t version;
 	uint32_t data_crc;
 	uint32_t partial_crc;
-	uint16_t csize;
+	uint32_t csize;
 	uint16_t overlapped;
 };
 
diff --git a/fs/jffs2/nodemgmt.c b/fs/jffs2/nodemgmt.c
index 0331072..b6bd4af 100644
--- a/fs/jffs2/nodemgmt.c
+++ b/fs/jffs2/nodemgmt.c
@@ -179,6 +179,7 @@ int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
 					spin_unlock(&c->erase_completion_lock);
 
 					schedule();
+					remove_wait_queue(&c->erase_wait, &wait);
 				} else
 					spin_unlock(&c->erase_completion_lock);
 			} else if (ret)
@@ -211,20 +212,25 @@ out:
 int jffs2_reserve_space_gc(struct jffs2_sb_info *c, uint32_t minsize,
 			   uint32_t *len, uint32_t sumsize)
 {
-	int ret = -EAGAIN;
+	int ret;
 	minsize = PAD(minsize);
 
 	jffs2_dbg(1, "%s(): Requested 0x%x bytes\n", __func__, minsize);
 
-	spin_lock(&c->erase_completion_lock);
-	while(ret == -EAGAIN) {
+	while (true) {
+		spin_lock(&c->erase_completion_lock);
 		ret = jffs2_do_reserve_space(c, minsize, len, sumsize);
 		if (ret) {
 			jffs2_dbg(1, "%s(): looping, ret is %d\n",
 				  __func__, ret);
 		}
+		spin_unlock(&c->erase_completion_lock);
+
+		if (ret == -EAGAIN)
+			cond_resched();
+		else
+			break;
 	}
-	spin_unlock(&c->erase_completion_lock);
 	if (!ret)
 		ret = jffs2_prealloc_raw_node_refs(c, c->nextblock, 1);