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authorBen Dooks <ben-linux@fluff.org>2008-07-25 01:46:02 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-25 10:53:30 -0700
commit28130bea3bcfefe3437b0a5dcab786f1f0296953 (patch)
tree2306a07e595eecf299b540c88d078e75a65c8c89 /drivers
parent42cd2366fb9b58cdfc1855be32b31a78e40b2079 (diff)
sm501: fixes for akpms comments on gpiolib addition
Fixup the comments from the patch that added the gpiolib support from Andrew Morton. These include spotting some missing frees on error or release, and changing a memcpy for a type-safe assingment. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/mfd/sm501.c24
1 files changed, 16 insertions, 8 deletions
diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c
index 107215b28805..2dfb41aabcaf 100644
--- a/drivers/mfd/sm501.c
+++ b/drivers/mfd/sm501.c
@@ -999,7 +999,7 @@ static int __devinit sm501_gpio_register_chip(struct sm501_devdata *sm,
struct gpio_chip *gchip = &chip->gpio;
int base = pdata->gpio_base;
- memcpy(chip, &gpio_chip_template, sizeof(struct gpio_chip));
+ chip->gpio = gpio_chip_template;
if (chip == &gpio->high) {
if (base > 0)
@@ -1039,7 +1039,7 @@ static int sm501_register_gpio(struct sm501_devdata *sm)
if (gpio->regs == NULL) {
dev_err(sm->dev, "gpio: failed to remap registers\n");
ret = -ENXIO;
- goto err_mapped;
+ goto err_claimed;
}
/* Register both our chips. */
@@ -1068,6 +1068,9 @@ static int sm501_register_gpio(struct sm501_devdata *sm)
}
err_mapped:
+ iounmap(gpio->regs);
+
+ err_claimed:
release_resource(gpio->regs_res);
kfree(gpio->regs_res);
@@ -1076,33 +1079,38 @@ static int sm501_register_gpio(struct sm501_devdata *sm)
static void sm501_gpio_remove(struct sm501_devdata *sm)
{
+ struct sm501_gpio *gpio = &sm->gpio;
int ret;
- ret = gpiochip_remove(&sm->gpio.low.gpio);
+ ret = gpiochip_remove(&gpio->low.gpio);
if (ret)
dev_err(sm->dev, "cannot remove low chip, cannot tidy up\n");
- ret = gpiochip_remove(&sm->gpio.high.gpio);
+ ret = gpiochip_remove(&gpio->high.gpio);
if (ret)
dev_err(sm->dev, "cannot remove high chip, cannot tidy up\n");
+
+ iounmap(gpio->regs);
+ release_resource(gpio->regs_res);
+ kfree(gpio->regs_res);
}
-static int sm501_gpio_pin2nr(struct sm501_devdata *sm, unsigned int pin)
+static inline int sm501_gpio_pin2nr(struct sm501_devdata *sm, unsigned int pin)
{
struct sm501_gpio *gpio = &sm->gpio;
return pin + (pin < 32) ? gpio->low.gpio.base : gpio->high.gpio.base;
}
#else
-static int sm501_register_gpio(struct sm501_devdata *sm)
+static inline int sm501_register_gpio(struct sm501_devdata *sm)
{
return 0;
}
-static void sm501_gpio_remove(struct sm501_devdata *sm)
+static inline void sm501_gpio_remove(struct sm501_devdata *sm)
{
}
-static int sm501_gpio_pin2nr(struct sm501_devdata *sm, unsigned int pin)
+static inline int sm501_gpio_pin2nr(struct sm501_devdata *sm, unsigned int pin)
{
return -1;
}