From 4bed207cd0b2805b0afa3835a0803d2eb27cbc9e Mon Sep 17 00:00:00 2001 From: Fabian Frederick Date: Sat, 25 Jan 2014 10:45:08 +0800 Subject: [PATCH] mtd: block2mtd: Add mutex_destroy mutex_destroy added on each device in block2mtd_exit and add_device failure Signed-off-by: Fabian Frederick Signed-off-by: Brian Norris --- drivers/mtd/devices/block2mtd.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c index d9fd87a4c8dc..3e12234b7565 100644 --- a/drivers/mtd/devices/block2mtd.c +++ b/drivers/mtd/devices/block2mtd.c @@ -240,13 +240,13 @@ static struct block2mtd_dev *add_device(char *devname, int erase_size) if (IS_ERR(bdev)) { pr_err("error: cannot open device %s\n", devname); - goto devinit_err; + goto err_free_block2mtd; } dev->blkdev = bdev; if (MAJOR(bdev->bd_dev) == MTD_BLOCK_MAJOR) { pr_err("attempting to use an MTD device as a block device\n"); - goto devinit_err; + goto err_free_block2mtd; } mutex_init(&dev->write_mutex); @@ -255,7 +255,7 @@ static struct block2mtd_dev *add_device(char *devname, int erase_size) /* make the name contain the block device in */ name = kasprintf(GFP_KERNEL, "block2mtd: %s", devname); if (!name) - goto devinit_err; + goto err_destroy_mutex; dev->mtd.name = name; @@ -274,7 +274,7 @@ static struct block2mtd_dev *add_device(char *devname, int erase_size) if (mtd_device_register(&dev->mtd, NULL, 0)) { /* Device didn't get added, so free the entry */ - goto devinit_err; + goto err_destroy_mutex; } list_add(&dev->list, &blkmtd_device_list); pr_info("mtd%d: [%s] erase_size = %dKiB [%d]\n", @@ -283,7 +283,9 @@ static struct block2mtd_dev *add_device(char *devname, int erase_size) dev->mtd.erasesize >> 10, dev->mtd.erasesize); return dev; -devinit_err: +err_destroy_mutex: + mutex_destroy(&dev->write_mutex); +err_free_block2mtd: block2mtd_free_device(dev); return NULL; } @@ -448,6 +450,7 @@ static void block2mtd_exit(void) struct block2mtd_dev *dev = list_entry(pos, typeof(*dev), list); block2mtd_sync(&dev->mtd); mtd_device_unregister(&dev->mtd); + mutex_destroy(&dev->write_mutex); pr_info("mtd%d: [%s] removed\n", dev->mtd.index, dev->mtd.name + strlen("block2mtd: ")); -- 2.30.2