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uio: pruss: move simple allocations to dem_ equivalents 

This change moves the simple allocations to their device-managed
equivalents.
This cleans up some error/exit paths.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Link: https://lore.kernel.org/r/20201111112242.62116-1-alexandru.ardelean@analog.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alexandru Ardelean 2020-11-11 13:22:41 +02:00 committed by Greg Kroah-Hartman
parent 439e8f6f1e
commit cfd3443e2d
1 changed files with 7 additions and 20 deletions
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27
drivers/uio/uio_pruss.c
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@ -99,7 +99,6 @@ static void pruss_cleanup(struct device *dev, struct uio_pruss_dev *gdev)
for (cnt = 0; cnt < MAX_PRUSS_EVT; cnt++, p++) {
uio_unregister_device(p);
kfree(p->name);
}
iounmap(gdev->prussio_vaddr);
if (gdev->ddr_vaddr) {
@ -110,10 +109,8 @@ static void pruss_cleanup(struct device *dev, struct uio_pruss_dev *gdev)
gen_pool_free(gdev->sram_pool,
gdev->sram_vaddr,
sram_pool_sz);
kfree(gdev->info);
clk_disable(gdev->pruss_clk);
clk_put(gdev->pruss_clk);
kfree(gdev);
}
static int pruss_probe(struct platform_device *pdev)
@ -125,22 +122,19 @@ static int pruss_probe(struct platform_device *pdev)
int ret, cnt, i, len;
struct uio_pruss_pdata *pdata = dev_get_platdata(dev);
gdev = kzalloc(sizeof(struct uio_pruss_dev), GFP_KERNEL);
gdev = devm_kzalloc(dev, sizeof(struct uio_pruss_dev), GFP_KERNEL);
if (!gdev)
return -ENOMEM;
gdev->info = kcalloc(MAX_PRUSS_EVT, sizeof(*p), GFP_KERNEL);
if (!gdev->info) {
ret = -ENOMEM;
goto err_free_gdev;
}
gdev->info = devm_kcalloc(dev, MAX_PRUSS_EVT, sizeof(*p), GFP_KERNEL);
if (!gdev->info)
return -ENOMEM;
/* Power on PRU in case its not done as part of boot-loader */
gdev->pruss_clk = clk_get(dev, "pruss");
if (IS_ERR(gdev->pruss_clk)) {
dev_err(dev, "Failed to get clock\n");
ret = PTR_ERR(gdev->pruss_clk);
goto err_free_info;
return PTR_ERR(gdev->pruss_clk);
}
ret = clk_enable(gdev->pruss_clk);
@ -206,7 +200,7 @@ static int pruss_probe(struct platform_device *pdev)
p->mem[2].size = extram_pool_sz;
p->mem[2].memtype = UIO_MEM_PHYS;
p->name = kasprintf(GFP_KERNEL, "pruss_evt%d", cnt);
p->name = devm_kasprintf(dev, GFP_KERNEL, "pruss_evt%d", cnt);
p->version = DRV_VERSION;
/* Register PRUSS IRQ lines */
@ -215,10 +209,8 @@ static int pruss_probe(struct platform_device *pdev)
p->priv = gdev;
ret = uio_register_device(dev, p);
if (ret < 0) {
kfree(p->name);
if (ret < 0)
goto err_unloop;
}
}
platform_set_drvdata(pdev, gdev);
@ -227,7 +219,6 @@ static int pruss_probe(struct platform_device *pdev)
err_unloop:
for (i = 0, p = gdev->info; i < cnt; i++, p++) {
uio_unregister_device(p);
kfree(p->name);
}
iounmap(gdev->prussio_vaddr);
err_free_ddr_vaddr:
@ -240,10 +231,6 @@ static int pruss_probe(struct platform_device *pdev)
clk_disable(gdev->pruss_clk);
err_clk_put:
clk_put(gdev->pruss_clk);
err_free_info:
kfree(gdev->info);
err_free_gdev:
kfree(gdev);
return ret;
}