qi-hardware/openwrt-xburst
1
0
Fork 0
mirror of git://projects.qi-hardware.com/openwrt-xburst.git synced 2025-04-21 12:27:27 +03:00
Code Activity

[generic]: add 3.7-rc6 support (patch 820 still has to be fixed)

Browse Source 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34247 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
kaloz
2012-11-18 18:52:38 +00:00
parent 1f8d59a46a
commit a50e0e7076
152 changed files with 26445 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

58
target/linux/generic/patches-3.7/864-gpiommc_configfs_locking.patch Normal file
View File

@@ -0,0 +1,58 @@
The gpiommc configfs context structure needs locking, as configfs
does not lock access between files.
--- a/drivers/mmc/host/gpiommc.c
+++ b/drivers/mmc/host/gpiommc.c
@@ -144,6 +144,8 @@ struct gpiommc_configfs_device {
struct platform_device *pdev;
/* The configuration */
struct gpiommc_platform_data pdata;
+ /* Mutex to protect this structure */
+ struct mutex mutex;
};
#define GPIO_INVALID -1
@@ -234,6 +236,8 @@ static ssize_t gpiommc_config_attr_show(
unsigned int gpio;
int err = 0;
+ mutex_lock(&dev->mutex);
+
if (attr == &gpiommc_attr_DI) {
gpio = dev->pdata.pins.gpio_di;
if (gpio == GPIO_INVALID)
@@ -294,6 +298,8 @@ static ssize_t gpiommc_config_attr_show(
WARN_ON(1);
err = -ENOSYS;
out:
+ mutex_unlock(&dev->mutex);
+
return err ? err : count;
}
@@ -353,6 +359,8 @@ static ssize_t gpiommc_config_attr_store
int err = -EINVAL;
unsigned long data;
+ mutex_lock(&dev->mutex);
+
if (attr == &gpiommc_attr_register) {
err = strict_strtoul(page, 10, &data);
if (err)
@@ -478,6 +486,8 @@ static ssize_t gpiommc_config_attr_store
WARN_ON(1);
err = -ENOSYS;
out:
+ mutex_unlock(&dev->mutex);
+
return err ? err : count;
}
@@ -514,6 +524,7 @@ static struct config_item *gpiommc_make_
if (!dev)
return NULL;
+ mutex_init(&dev->mutex);
config_item_init_type_name(&dev->item, name,
&gpiommc_dev_ci_type);