The patch titled
Subject: backlight/lp855x_bl.c: check platform data in lp855x_probe()
has been removed from the -mm tree. Its filename was
backlight-lp855x_blc-check-platform-data-in-lp855x_probe.patch
This patch was dropped because it was folded into backlight-new-backlight-driver-for-lp855x-devices.patch
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
From: Axel Lin <axel.lin@xxxxxxxxx>
Subject: backlight/lp855x_bl.c: check platform data in lp855x_probe()
The reset of the code assumes pdata is not NULL. Add checking for pdata
in lp855x_probe(), this prevents NULL dereference if pdata is NULL.
Signed-off-by: Axel Lin <axel.lin@xxxxxxxxx>
Cc: Richard Purdie <rpurdie@xxxxxxxxx>
Cc: "Milo(Woogyom) Kim" <milo.kim@xxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/video/backlight/lp855x_bl.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff -puN drivers/video/backlight/lp855x_bl.c~backlight-lp855x_blc-check-platform-data-in-lp855x_probe drivers/video/backlight/lp855x_bl.c
--- a/drivers/video/backlight/lp855x_bl.c~backlight-lp855x_blc-check-platform-data-in-lp855x_probe
+++ a/drivers/video/backlight/lp855x_bl.c
@@ -231,9 +231,14 @@ static int lp855x_probe(struct i2c_clien
{
struct lp855x *lp;
struct lp855x_platform_data *pdata = cl->dev.platform_data;
- enum lp855x_brightness_ctrl_mode mode = pdata->mode;
+ enum lp855x_brightness_ctrl_mode mode;
int ret;
+ if (!pdata) {
+ dev_err(&cl->dev, "no platform data supplied\n");
+ return -EINVAL;
+ }
+
if (!i2c_check_functionality(cl->adapter, I2C_FUNC_SMBUS_I2C_BLOCK))
return -EIO;
@@ -241,6 +246,7 @@ static int lp855x_probe(struct i2c_clien
if (!lp)
return -ENOMEM;
+ mode = pdata->mode;
lp->client = cl;
lp->dev = &cl->dev;
lp->pdata = pdata;
_
Patches currently in -mm which might be from axel.lin@xxxxxxxxx are
origin.patch
backlight-convert-backlight-i2c-drivers-to-module_i2c_driver.patch
backlight-convert-backlight-spi-drivers-to-module_spi_driver.patch
backlight-new-backlight-driver-for-lp855x-devices.patch
backlight-lp855x_blc-small-cleanups.patch
lp855x-bl-remove-unnecessary-platform-data.patch
lp855x-bl-remove-unnecessary-headers.patch
backlight-use-id-driver_data-to-differentiate-lp855x-chips.patch
drivers-leds-add-driver-for-pca9663-i2c-chip.patch
leds-lm3530-replace-pltfm-with-pdata.patch
drivers-leds-leds-pca9633c-remove-unused-adapter-variable.patch
drivers-leds-leds-lm3530c-move-the-code-setting-gen_config-to-one-place.patch
rtc-convert-rtc-spi-drivers-to-module_spi_driver.patch
rtc-convert-rtc-i2c-drivers-to-module_i2c_driver.patch
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