From 21b185f8d5951ebbf76d61f431fb541dce5113d1 Mon Sep 17 00:00:00 2001 From: Jonathan Cameron Date: Wed, 18 May 2011 14:42:32 +0100 Subject: [PATCH] staging:iio: poll func allocation clean up. Add a function to neatly deal with allocation of poll functions. Ultimately this allows us to more easily change the implementation. Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/staging/iio/accel/adis16201_ring.c | 22 +++++-------- drivers/staging/iio/accel/adis16203_ring.c | 23 +++++--------- drivers/staging/iio/accel/adis16204_ring.c | 23 +++++--------- drivers/staging/iio/accel/adis16209_ring.c | 24 ++++++--------- drivers/staging/iio/accel/adis16240_ring.c | 26 ++++++---------- drivers/staging/iio/imu/adis16400_ring.c | 23 ++++++-------- drivers/staging/iio/industrialio-trigger.c | 36 ++++++++++++++++++++++ drivers/staging/iio/trigger.h | 8 +++++ 8 files changed, 95 insertions(+), 90 deletions(-) diff --git a/drivers/staging/iio/accel/adis16201_ring.c b/drivers/staging/iio/accel/adis16201_ring.c index 83b53365d8ed..c61f981255ca 100644 --- a/drivers/staging/iio/accel/adis16201_ring.c +++ b/drivers/staging/iio/accel/adis16201_ring.c @@ -96,8 +96,7 @@ static irqreturn_t adis16201_trigger_handler(int irq, void *p) void adis16201_unconfigure_ring(struct iio_dev *indio_dev) { - kfree(indio_dev->pollfunc->name); - kfree(indio_dev->pollfunc); + iio_dealloc_pollfunc(indio_dev->pollfunc); iio_sw_rb_free(indio_dev->ring); } @@ -134,26 +133,19 @@ int adis16201_configure_ring(struct iio_dev *indio_dev) iio_scan_mask_set(ring, ADIS16201_SCAN_INCLI_X); iio_scan_mask_set(ring, ADIS16201_SCAN_INCLI_Y); - indio_dev->pollfunc = kzalloc(sizeof(*indio_dev->pollfunc), GFP_KERNEL); + indio_dev->pollfunc = iio_alloc_pollfunc(&iio_pollfunc_store_time, + &adis16201_trigger_handler, + IRQF_ONESHOT, + indio_dev, + "adis16201_consumer%d", + indio_dev->id); if (indio_dev->pollfunc == NULL) { ret = -ENOMEM; goto error_iio_sw_rb_free; } - indio_dev->pollfunc->private_data = indio_dev; - indio_dev->pollfunc->h = &iio_pollfunc_store_time; - indio_dev->pollfunc->thread = &adis16201_trigger_handler; - indio_dev->pollfunc->type = IRQF_ONESHOT; - indio_dev->pollfunc->name = - kasprintf(GFP_KERNEL, "adis16201_consumer%d", indio_dev->id); - if (indio_dev->pollfunc->name == NULL) { - ret = -ENOMEM; - goto error_free_poll_func; - } indio_dev->modes |= INDIO_RING_TRIGGERED; return 0; -error_free_poll_func: - kfree(indio_dev->pollfunc); error_iio_sw_rb_free: iio_sw_rb_free(indio_dev->ring); return ret; diff --git a/drivers/staging/iio/accel/adis16203_ring.c b/drivers/staging/iio/accel/adis16203_ring.c index 1b8863d2ff09..a9a789d79c09 100644 --- a/drivers/staging/iio/accel/adis16203_ring.c +++ b/drivers/staging/iio/accel/adis16203_ring.c @@ -103,8 +103,7 @@ static irqreturn_t adis16203_trigger_handler(int irq, void *p) void adis16203_unconfigure_ring(struct iio_dev *indio_dev) { - kfree(indio_dev->pollfunc->name); - kfree(indio_dev->pollfunc); + iio_dealloc_pollfunc(indio_dev->pollfunc); iio_sw_rb_free(indio_dev->ring); } @@ -139,26 +138,20 @@ int adis16203_configure_ring(struct iio_dev *indio_dev) iio_scan_mask_set(ring, ADIS16203_SCAN_INCLI_X); iio_scan_mask_set(ring, ADIS16203_SCAN_INCLI_Y); - indio_dev->pollfunc = kzalloc(sizeof(*indio_dev->pollfunc), GFP_KERNEL); + indio_dev->pollfunc = iio_alloc_pollfunc(&iio_pollfunc_store_time, + &adis16203_trigger_handler, + IRQF_ONESHOT, + indio_dev, + "adis16203_consumer%d", + indio_dev->id); if (indio_dev->pollfunc == NULL) { ret = -ENOMEM; goto error_iio_sw_rb_free; } - indio_dev->pollfunc->private_data = indio_dev; - indio_dev->pollfunc->h = &iio_pollfunc_store_time; - indio_dev->pollfunc->thread = &adis16203_trigger_handler; - indio_dev->pollfunc->type = IRQF_ONESHOT; - indio_dev->pollfunc->name = - kasprintf(GFP_KERNEL, "adis16203_consumer%d", indio_dev->id); - if (indio_dev->pollfunc->name == NULL) { - ret = -ENOMEM; - goto error_free_poll_func; - } indio_dev->modes |= INDIO_RING_TRIGGERED; return 0; -error_free_poll_func: - kfree(indio_dev->pollfunc); + error_iio_sw_rb_free: iio_sw_rb_free(indio_dev->ring); return ret; diff --git a/drivers/staging/iio/accel/adis16204_ring.c b/drivers/staging/iio/accel/adis16204_ring.c index 7d99b4884f94..a2d36fb822e5 100644 --- a/drivers/staging/iio/accel/adis16204_ring.c +++ b/drivers/staging/iio/accel/adis16204_ring.c @@ -98,8 +98,7 @@ static irqreturn_t adis16204_trigger_handler(int irq, void *p) void adis16204_unconfigure_ring(struct iio_dev *indio_dev) { - kfree(indio_dev->pollfunc->name); - kfree(indio_dev->pollfunc); + iio_dealloc_pollfunc(indio_dev->pollfunc); iio_sw_rb_free(indio_dev->ring); } @@ -134,27 +133,21 @@ int adis16204_configure_ring(struct iio_dev *indio_dev) iio_scan_mask_set(ring, ADIS16204_SCAN_AUX_ADC); iio_scan_mask_set(ring, ADIS16204_SCAN_TEMP); - indio_dev->pollfunc = kzalloc(sizeof(*indio_dev->pollfunc), GFP_KERNEL); + indio_dev->pollfunc = iio_alloc_pollfunc(&iio_pollfunc_store_time, + &adis16204_trigger_handler, + IRQF_ONESHOT, + indio_dev, + "%s_consumer%d", + indio_dev->name, + indio_dev->id); if (indio_dev->pollfunc == NULL) { ret = -ENOMEM; goto error_iio_sw_rb_free; } - indio_dev->pollfunc->private_data = indio_dev; - indio_dev->pollfunc->h = &iio_pollfunc_store_time; - indio_dev->pollfunc->thread = &adis16204_trigger_handler; - indio_dev->pollfunc->type = IRQF_ONESHOT; - indio_dev->pollfunc->name = - kasprintf(GFP_KERNEL, "adis16204_consumer%d", indio_dev->id); - if (indio_dev->pollfunc->name == NULL) { - ret = -ENOMEM; - goto error_free_poll_func; - } indio_dev->modes |= INDIO_RING_TRIGGERED; return 0; -error_free_poll_func: - kfree(indio_dev->pollfunc); error_iio_sw_rb_free: iio_sw_rb_free(indio_dev->ring); return ret; diff --git a/drivers/staging/iio/accel/adis16209_ring.c b/drivers/staging/iio/accel/adis16209_ring.c index 26028e9a9056..390908b3f02f 100644 --- a/drivers/staging/iio/accel/adis16209_ring.c +++ b/drivers/staging/iio/accel/adis16209_ring.c @@ -98,8 +98,7 @@ static irqreturn_t adis16209_trigger_handler(int irq, void *p) void adis16209_unconfigure_ring(struct iio_dev *indio_dev) { - kfree(indio_dev->pollfunc->name); - kfree(indio_dev->pollfunc); + iio_dealloc_pollfunc(indio_dev->pollfunc); iio_sw_rb_free(indio_dev->ring); } @@ -137,26 +136,21 @@ int adis16209_configure_ring(struct iio_dev *indio_dev) iio_scan_mask_set(ring, ADIS16209_SCAN_INCLI_Y); iio_scan_mask_set(ring, ADIS16209_SCAN_ROT); - indio_dev->pollfunc = kzalloc(sizeof(*indio_dev->pollfunc), GFP_KERNEL); + indio_dev->pollfunc = iio_alloc_pollfunc(&iio_pollfunc_store_time, + &adis16209_trigger_handler, + IRQF_ONESHOT, + indio_dev, + "%s_consumer%d", + indio_dev->name, + indio_dev->id); if (indio_dev->pollfunc == NULL) { ret = -ENOMEM; goto error_iio_sw_rb_free; } - indio_dev->pollfunc->private_data = indio_dev; - indio_dev->pollfunc->h = &iio_pollfunc_store_time; - indio_dev->pollfunc->thread = &adis16209_trigger_handler; - indio_dev->pollfunc->type = IRQF_ONESHOT; - indio_dev->pollfunc->name = - kasprintf(GFP_KERNEL, "adis16209_consumer%d", indio_dev->id); - if (indio_dev->pollfunc->name == NULL) { - ret = -ENOMEM; - goto error_free_poll_func; - } indio_dev->modes |= INDIO_RING_TRIGGERED; return 0; -error_free_poll_func: - kfree(indio_dev->pollfunc); + error_iio_sw_rb_free: iio_sw_rb_free(indio_dev->ring); return ret; diff --git a/drivers/staging/iio/accel/adis16240_ring.c b/drivers/staging/iio/accel/adis16240_ring.c index 8450f7f0e538..0c6d781d94c6 100644 --- a/drivers/staging/iio/accel/adis16240_ring.c +++ b/drivers/staging/iio/accel/adis16240_ring.c @@ -95,8 +95,7 @@ static irqreturn_t adis16240_trigger_handler(int irq, void *p) void adis16240_unconfigure_ring(struct iio_dev *indio_dev) { - kfree(indio_dev->pollfunc->name); - kfree(indio_dev->pollfunc); + iio_dealloc_pollfunc(indio_dev->pollfunc); iio_sw_rb_free(indio_dev->ring); } @@ -132,27 +131,22 @@ int adis16240_configure_ring(struct iio_dev *indio_dev) iio_scan_mask_set(ring, ADIS16240_SCAN_AUX_ADC); iio_scan_mask_set(ring, ADIS16240_SCAN_TEMP); - indio_dev->pollfunc = kzalloc(sizeof(*indio_dev->pollfunc), GFP_KERNEL); + indio_dev->pollfunc = iio_alloc_pollfunc(&iio_pollfunc_store_time, + &adis16240_trigger_handler, + IRQF_ONESHOT, + indio_dev, + "%s_consumer%d", + indio_dev->name, + indio_dev->id); if (indio_dev->pollfunc == NULL) { ret = -ENOMEM; goto error_iio_sw_rb_free; } - indio_dev->pollfunc->private_data = indio_dev; - indio_dev->pollfunc->h = &iio_pollfunc_store_time; - indio_dev->pollfunc->thread = &adis16240_trigger_handler; - indio_dev->pollfunc->type = IRQF_ONESHOT; - indio_dev->pollfunc->name = - kasprintf(GFP_KERNEL, "adis16240_consumer%d", indio_dev->id); - if (indio_dev->pollfunc->name == NULL) { - ret = -ENOMEM; - goto error_free_poll_func; - } + indio_dev->modes |= INDIO_RING_TRIGGERED; return 0; -error_free_poll_func: - kfree(indio_dev->pollfunc); + error_iio_sw_rb_free: iio_sw_rb_free(indio_dev->ring); return ret; } - diff --git a/drivers/staging/iio/imu/adis16400_ring.c b/drivers/staging/iio/imu/adis16400_ring.c index 5d99fba8cc29..2589a7e167e4 100644 --- a/drivers/staging/iio/imu/adis16400_ring.c +++ b/drivers/staging/iio/imu/adis16400_ring.c @@ -165,8 +165,7 @@ static irqreturn_t adis16400_trigger_handler(int irq, void *p) void adis16400_unconfigure_ring(struct iio_dev *indio_dev) { - kfree(indio_dev->pollfunc->name); - kfree(indio_dev->pollfunc); + iio_dealloc_pollfunc(indio_dev->pollfunc); iio_sw_rb_free(indio_dev->ring); } @@ -194,28 +193,24 @@ int adis16400_configure_ring(struct iio_dev *indio_dev) ring->scan_timestamp = true; ring->setup_ops = &adis16400_ring_setup_ops; ring->owner = THIS_MODULE; + /* Set default scan mode */ ring->scan_mask = st->variant->default_scan_mask; ring->scan_count = hweight_long(st->variant->default_scan_mask); - /* Set default scan mode */ - indio_dev->pollfunc = kzalloc(sizeof(*indio_dev->pollfunc), GFP_KERNEL); + indio_dev->pollfunc = iio_alloc_pollfunc(&iio_pollfunc_store_time, + &adis16400_trigger_handler, + IRQF_ONESHOT, + indio_dev, + "%s_consumer%d", + indio_dev->name, + indio_dev->id); if (indio_dev->pollfunc == NULL) { ret = -ENOMEM; goto error_iio_sw_rb_free; } - indio_dev->pollfunc->private_data = indio_dev; - indio_dev->pollfunc->h = &iio_pollfunc_store_time; - indio_dev->pollfunc->thread = &adis16400_trigger_handler; - indio_dev->pollfunc->type = IRQF_ONESHOT; - indio_dev->pollfunc->name = - kasprintf(GFP_KERNEL, "adis16400_consumer%d", indio_dev->id); - if (ret) - goto error_iio_free_pollfunc; indio_dev->modes |= INDIO_RING_TRIGGERED; return 0; -error_iio_free_pollfunc: - kfree(indio_dev->pollfunc); error_iio_sw_rb_free: iio_sw_rb_free(indio_dev->ring); return ret; diff --git a/drivers/staging/iio/industrialio-trigger.c b/drivers/staging/iio/industrialio-trigger.c index e83edacaec89..615902333fb0 100644 --- a/drivers/staging/iio/industrialio-trigger.c +++ b/drivers/staging/iio/industrialio-trigger.c @@ -270,6 +270,42 @@ irqreturn_t iio_pollfunc_store_time(int irq, void *p) } EXPORT_SYMBOL(iio_pollfunc_store_time); +struct iio_poll_func +*iio_alloc_pollfunc(irqreturn_t (*h)(int irq, void *p), + irqreturn_t (*thread)(int irq, void *p), + int type, + void *private, + const char *fmt, + ...) +{ + va_list vargs; + struct iio_poll_func *pf; + + pf = kmalloc(sizeof *pf, GFP_KERNEL); + if (pf == NULL) + return NULL; + va_start(vargs, fmt); + pf->name = kvasprintf(GFP_KERNEL, fmt, vargs); + va_end(vargs); + if (pf->name == NULL) { + kfree(pf); + return NULL; + } + pf->h = h; + pf->thread = thread; + pf->type = type; + + return pf; +} +EXPORT_SYMBOL_GPL(iio_alloc_pollfunc); + +void iio_dealloc_pollfunc(struct iio_poll_func *pf) +{ + kfree(pf->name); + kfree(pf); +} +EXPORT_SYMBOL_GPL(iio_dealloc_pollfunc); + /** * iio_trigger_read_currrent() - trigger consumer sysfs query which trigger * diff --git a/drivers/staging/iio/trigger.h b/drivers/staging/iio/trigger.h index 7faa31a2421e..f329fe10fa2f 100644 --- a/drivers/staging/iio/trigger.h +++ b/drivers/staging/iio/trigger.h @@ -160,6 +160,14 @@ struct iio_poll_func { s64 timestamp; }; +struct iio_poll_func +*iio_alloc_pollfunc(irqreturn_t (*h)(int irq, void *p), + irqreturn_t (*thread)(int irq, void *p), + int type, + void *private, + const char *fmt, + ...); +void iio_dealloc_pollfunc(struct iio_poll_func *pf); irqreturn_t iio_pollfunc_store_time(int irq, void *p); /* -- 2.39.5