From: Thierry Reding <thierry.red...@gmail.com>

Fixes the following warnings reported by the 0-DAY kernel build testing
backend:

   drivers/pwm/pwm-lpss.c: In function 'pwm_lpss_probe_pci':
>> drivers/pwm/pwm-lpss.c:192:2: warning: passing argument 3 of 
>> 'pwm_lpss_probe' discards 'const' qualifier from pointer target type 
>> [enabled by default]
     lpwm = pwm_lpss_probe(&pdev->dev, &pdev->resource[0], info);
     ^
   drivers/pwm/pwm-lpss.c:130:30: note: expected 'struct pwm_lpss_boardinfo *' 
but argument is of type 'const struct pwm_lpss_boardinfo *'
    static struct pwm_lpss_chip *pwm_lpss_probe(struct device *dev,
                                 ^
>> drivers/pwm/pwm-lpss.c:143:28: sparse: incorrect type in return expression 
>> (different address spaces)
   drivers/pwm/pwm-lpss.c:143:28:    expected struct pwm_lpss_chip *
   drivers/pwm/pwm-lpss.c:143:28:    got void [noderef] <asn:2>*regs
>> drivers/pwm/pwm-lpss.c:192:63: sparse: incorrect type in argument 3 
>> (different modifiers)
   drivers/pwm/pwm-lpss.c:192:63:    expected struct pwm_lpss_boardinfo *info
   drivers/pwm/pwm-lpss.c:192:63:    got struct pwm_lpss_boardinfo const 
*[assigned] info
   drivers/pwm/pwm-lpss.c: In function 'pwm_lpss_probe_pci':
   drivers/pwm/pwm-lpss.c:192:2: warning: passing argument 3 of 
'pwm_lpss_probe' discards 'const' qualifier from pointer target type [enabled 
by default]
     lpwm = pwm_lpss_probe(&pdev->dev, &pdev->resource[0], info);
     ^
   drivers/pwm/pwm-lpss.c:130:30: note: expected 'struct pwm_lpss_boardinfo *' 
but argument is of type 'const struct pwm_lpss_boardinfo *'
    static struct pwm_lpss_chip *pwm_lpss_probe(struct device *dev,
                                 ^

Reported-by: kbuild test robot <fengguang...@intel.com>
Signed-off-by: Thierry Reding <thierry.red...@gmail.com>
(cherry picked from commit 89c0339e0aa097384b3efed894b23820814c21d3)
Signed-off-by: Chang Rebecca Swee Fun <rebecca.swee.fun.ch...@intel.com>
---
 drivers/pwm/pwm-lpss.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pwm/pwm-lpss.c b/drivers/pwm/pwm-lpss.c
index c718ad1..44ce6c6 100644
--- a/drivers/pwm/pwm-lpss.c
+++ b/drivers/pwm/pwm-lpss.c
@@ -129,7 +129,7 @@ static const struct pwm_ops pwm_lpss_ops = {
 
 static struct pwm_lpss_chip *pwm_lpss_probe(struct device *dev,
                                            struct resource *r,
-                                           struct pwm_lpss_boardinfo *info)
+                                           const struct pwm_lpss_boardinfo 
*info)
 {
        struct pwm_lpss_chip *lpwm;
        int ret;
@@ -140,7 +140,7 @@ static struct pwm_lpss_chip *pwm_lpss_probe(struct device 
*dev,
 
        lpwm->regs = devm_ioremap_resource(dev, r);
        if (IS_ERR(lpwm->regs))
-               return lpwm->regs;
+               return ERR_CAST(lpwm->regs);
 
        if (info) {
                lpwm->clk_rate = info->clk_rate;
-- 
1.9.1

-- 
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