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authorAlexandru Ardelean <alexandru.ardelean@analog.com>2020-11-19 17:50:59 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-12-09 21:57:03 +0300
commit68d621197162eb503d32676452e7281e3fb6c8cc (patch)
tree8752459dac16a361db101734470f0a903a246c4b /drivers/uio/uio_pruss.c
parent81113b0421a5199a1f425beaef7dad0d7c16a891 (diff)
downloadlinux-68d621197162eb503d32676452e7281e3fb6c8cc.tar.xz
uio: pruss: use devm_clk_get() for clk init
This change uses devm_clk_get() to obtain a reference to the clock. It has the benefit that clk_put() is no longer required, and cleans up the exit & error path. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Link: https://lore.kernel.org/r/20201119145059.48326-1-alexandru.ardelean@analog.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/uio/uio_pruss.c')
-rw-r--r--drivers/uio/uio_pruss.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/drivers/uio/uio_pruss.c b/drivers/uio/uio_pruss.c
index 41470c4dba02..e9096f53b4cc 100644
--- a/drivers/uio/uio_pruss.c
+++ b/drivers/uio/uio_pruss.c
@@ -110,7 +110,6 @@ static void pruss_cleanup(struct device *dev, struct uio_pruss_dev *gdev)
gdev->sram_vaddr,
sram_pool_sz);
clk_disable(gdev->pruss_clk);
- clk_put(gdev->pruss_clk);
}
static int pruss_probe(struct platform_device *pdev)
@@ -131,7 +130,7 @@ static int pruss_probe(struct platform_device *pdev)
return -ENOMEM;
/* Power on PRU in case its not done as part of boot-loader */
- gdev->pruss_clk = clk_get(dev, "pruss");
+ gdev->pruss_clk = devm_clk_get(dev, "pruss");
if (IS_ERR(gdev->pruss_clk)) {
dev_err(dev, "Failed to get clock\n");
return PTR_ERR(gdev->pruss_clk);
@@ -140,7 +139,7 @@ static int pruss_probe(struct platform_device *pdev)
ret = clk_enable(gdev->pruss_clk);
if (ret) {
dev_err(dev, "Failed to enable clock\n");
- goto err_clk_put;
+ return ret;
}
regs_prussio = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -229,8 +228,6 @@ err_free_sram:
gen_pool_free(gdev->sram_pool, gdev->sram_vaddr, sram_pool_sz);
err_clk_disable:
clk_disable(gdev->pruss_clk);
-err_clk_put:
- clk_put(gdev->pruss_clk);
return ret;
}