diff options
| author | Naga Radhesh <naga.radheshy@stericsson.com> | 2012-02-27 12:41:16 +0530 |
|---|---|---|
| committer | Philippe Langlais <philippe.langlais@stericsson.com> | 2012-05-22 11:01:39 +0200 |
| commit | 713724046af865d0650e430f2101693fd5947969 (patch) | |
| tree | 2198e58521ba38d9473c3114256db89bb99a4cb8 | |
| parent | 2ab2bbebe4ad7f2e6edef2f4fb11d275ec9b0737 (diff) | |
ab8500-pwm: check for valid platform data pointer
Before accessing platform data, check whether
platform pointer is valid or not.
ST-Ericsson ID: 366316
ST-Ericsson Linux next: NA
ST-Ericsson FOSS-OUT ID: Trivial
Signed-off-by: Naga Radhesh <naga.radheshy@stericsson.com>
Change-Id: I176dd81743d1c063f6814c35992cc8813ac57055
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/50530
Reviewed-by: QATOOLS
Reviewed-by: QABUILD
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
| -rw-r--r-- | drivers/misc/ab8500-pwm.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/misc/ab8500-pwm.c b/drivers/misc/ab8500-pwm.c index d7a62767a58..01d329ba76c 100644 --- a/drivers/misc/ab8500-pwm.c +++ b/drivers/misc/ab8500-pwm.c @@ -206,10 +206,16 @@ static int __devinit ab8500_pwm_probe(struct platform_device *pdev) { struct ab8500 *parent = dev_get_drvdata(pdev->dev.parent); struct ab8500_platform_data *plat = dev_get_platdata(parent->dev); - struct ab8500_pwmled_platform_data *pdata = plat->pwmled; + struct ab8500_pwmled_platform_data *pdata; struct pwm_device *pwm; int ret = 0 , i; + /* get pwmled specific platform data */ + if (!plat->pwmled) { + dev_err(&pdev->dev, "no pwm platform data supplied\n"); + return -EINVAL; + } + pdata = plat->pwmled; /* * Nothing to be done in probe, this is required to get the * device which is required for ab8500 read and write |