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Subject: [media] drivers/media/radio/radio-wl1273.c: use devm_ functions Author: Julia Lawall <[email protected]> Date: Tue Jul 31 05:21:35 2012 -0300 The various devm_ functions allocate memory that is released when a driver detaches. This patch uses these functions for data that is allocated in the probe function of a platform device and is only freed in the remove function. In two cases, the original memory allocation function was kmalloc, which has been changed to a zeroing allocation to benefit from the devm function. Signed-off-by: Julia Lawall <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]> drivers/media/radio/radio-wl1273.c | 23 +++++++---------------- 1 files changed, 7 insertions(+), 16 deletions(-) --- http://git.linuxtv.org/media_tree.git?a=commitdiff;h=d91e0139351b040ec558accab84bf59d5cef5552 diff --git a/drivers/media/radio/radio-wl1273.c b/drivers/media/radio/radio-wl1273.c index e8428f5..a22ad1c 100644 --- a/drivers/media/radio/radio-wl1273.c +++ b/drivers/media/radio/radio-wl1273.c @@ -1983,9 +1983,6 @@ static int wl1273_fm_radio_remove(struct platform_device *pdev) v4l2_ctrl_handler_free(&radio->ctrl_handler); video_unregister_device(&radio->videodev); v4l2_device_unregister(&radio->v4l2dev); - kfree(radio->buffer); - kfree(radio->write_buf); - kfree(radio); return 0; } @@ -2005,7 +2002,7 @@ static int __devinit wl1273_fm_radio_probe(struct platform_device *pdev) goto pdata_err; } - radio = kzalloc(sizeof(*radio), GFP_KERNEL); + radio = devm_kzalloc(&pdev->dev, sizeof(*radio), GFP_KERNEL); if (!radio) { r = -ENOMEM; goto pdata_err; @@ -2013,11 +2010,11 @@ static int __devinit wl1273_fm_radio_probe(struct platform_device *pdev) /* RDS buffer allocation */ radio->buf_size = rds_buf * RDS_BLOCK_SIZE; - radio->buffer = kmalloc(radio->buf_size, GFP_KERNEL); + radio->buffer = devm_kzalloc(&pdev->dev, radio->buf_size, GFP_KERNEL); if (!radio->buffer) { pr_err("Cannot allocate memory for RDS buffer.\n"); r = -ENOMEM; - goto err_kmalloc; + goto pdata_err; } radio->core = *core; @@ -2043,7 +2040,7 @@ static int __devinit wl1273_fm_radio_probe(struct platform_device *pdev) if (r) { dev_err(radio->dev, WL1273_FM_DRIVER_NAME ": Cannot get platform data\n"); - goto err_resources; + goto pdata_err; } dev_dbg(radio->dev, "irq: %d\n", radio->core->client->irq); @@ -2061,13 +2058,13 @@ static int __devinit wl1273_fm_radio_probe(struct platform_device *pdev) dev_err(radio->dev, WL1273_FM_DRIVER_NAME ": Core WL1273 IRQ" " not configured"); r = -EINVAL; - goto err_resources; + goto pdata_err; } init_completion(&radio->busy); init_waitqueue_head(&radio->read_queue); - radio->write_buf = kmalloc(256, GFP_KERNEL); + radio->write_buf = devm_kzalloc(&pdev->dev, 256, GFP_KERNEL); if (!radio->write_buf) { r = -ENOMEM; goto write_buf_err; @@ -2080,7 +2077,7 @@ static int __devinit wl1273_fm_radio_probe(struct platform_device *pdev) r = v4l2_device_register(&pdev->dev, &radio->v4l2dev); if (r) { dev_err(&pdev->dev, "Cannot register v4l2_device.\n"); - goto device_register_err; + goto write_buf_err; } /* V4L2 configuration */ @@ -2135,16 +2132,10 @@ static int __devinit wl1273_fm_radio_probe(struct platform_device *pdev) handler_init_err: v4l2_ctrl_handler_free(&radio->ctrl_handler); v4l2_device_unregister(&radio->v4l2dev); -device_register_err: - kfree(radio->write_buf); write_buf_err: free_irq(radio->core->client->irq, radio); err_request_irq: radio->core->pdata->free_resources(); -err_resources: - kfree(radio->buffer); -err_kmalloc: - kfree(radio); pdata_err: return r; } _______________________________________________ linuxtv-commits mailing list [email protected] http://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits
