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Subject[PATCH v3] staging: ccree: Convert to platform_{get,set}_drvdata()
Date
From: Suniel Mahesh <sunil.m@techveda.org>

Platform devices are expected to use wrapper functions,
platform_{get,set}_drvdata() with platform_device as argument,
for getting and setting the driver data. dev_{get,set}_drvdata()
are using &plat_dev->dev.
For wrapper functions we can directly pass a struct platform_device.

dev_set_drvdata() is redundant and therefore removed. The driver core
clears the driver data to NULL after device_release or on probe failure.

Signed-off-by: Suniel Mahesh <sunil.m@techveda.org>
---
Changes for v3:
- Rebased on top of staging-testing as suggested by Greg KH.
- Patch was tested and built(ARCH=arm) on staging-testing.
---
Changes for v2:
- Rebased on top of staging-testing.
---
Note:
- No build issues reported, however it was not tested on
real hardware.
---
drivers/staging/ccree/ssi_driver.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/ccree/ssi_driver.c b/drivers/staging/ccree/ssi_driver.c
index 795a087..5f03c25 100644
--- a/drivers/staging/ccree/ssi_driver.c
+++ b/drivers/staging/ccree/ssi_driver.c
@@ -215,7 +215,7 @@ static int init_cc_resources(struct platform_device *plat_dev)
rc = -ENOMEM;
goto post_drvdata_err;
}
- dev_set_drvdata(dev, new_drvdata);
+ platform_set_drvdata(plat_dev, new_drvdata);
new_drvdata->plat_dev = plat_dev;

new_drvdata->clk = of_clk_get(np, 0);
@@ -393,7 +393,6 @@ static int init_cc_resources(struct platform_device *plat_dev)
cc_clk_off(new_drvdata);
post_drvdata_err:
dev_err(dev, "ccree init error occurred!\n");
- dev_set_drvdata(dev, NULL);
return rc;
}

@@ -407,7 +406,7 @@ void fini_cc_regs(struct ssi_drvdata *drvdata)
static void cleanup_cc_resources(struct platform_device *plat_dev)
{
struct ssi_drvdata *drvdata =
- (struct ssi_drvdata *)dev_get_drvdata(&plat_dev->dev);
+ (struct ssi_drvdata *)platform_get_drvdata(plat_dev);

ssi_aead_free(drvdata);
ssi_hash_free(drvdata);
@@ -423,7 +422,6 @@ static void cleanup_cc_resources(struct platform_device *plat_dev)
#endif
fini_cc_regs(drvdata);
cc_clk_off(drvdata);
- dev_set_drvdata(&plat_dev->dev, NULL);
}

int cc_clk_on(struct ssi_drvdata *drvdata)
--
1.9.1
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