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soc: ti: pm33xx: do device_node auto cleanup

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Use scope based cleanup instead of manual of_node_put() calls, hence
simplifying the handling of error paths.

Suggested-by: Julia Lawall <julia.lawall@inria.fr>
Signed-off-by: Kousik Sanagavarapu <five231003@gmail.com>
Link: https://lore.kernel.org/r/20240825085714.10736-5-five231003@gmail.com
Signed-off-by: Nishanth Menon <nm@ti.com>
This commit is contained in:
Kousik Sanagavarapu 2024-08-25 14:18:45 +05:30 committed by Nishanth Menon
parent b0289dbf1c
commit 68123510b7
1 changed files with 21 additions and 31 deletions
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52
drivers/soc/ti/pm33xx.c
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@ -383,54 +383,44 @@ static void am33xx_pm_free_sram(void)
*/
static int am33xx_pm_alloc_sram(void)
{
struct device_node *np;
int ret = 0;
struct device_node *np __free(device_node) =
of_find_compatible_node(NULL, NULL, "ti,omap3-mpu");
np = of_find_compatible_node(NULL, NULL, "ti,omap3-mpu");
if (!np) {
np = of_find_compatible_node(NULL, NULL, "ti,omap4-mpu");
if (!np) {
dev_err(pm33xx_dev, "PM: %s: Unable to find device node for mpu\n",
__func__);
return -ENODEV;
}
if (!np)
return dev_err_probe(pm33xx_dev, -ENODEV,
"PM: %s: Unable to find device node for mpu\n",
__func__);
}
sram_pool = of_gen_pool_get(np, "pm-sram", 0);
if (!sram_pool) {
dev_err(pm33xx_dev, "PM: %s: Unable to get sram pool for ocmcram\n",
__func__);
ret = -ENODEV;
goto mpu_put_node;
}
if (!sram_pool)
return dev_err_probe(pm33xx_dev, -ENODEV,
"PM: %s: Unable to get sram pool for ocmcram\n",
__func__);
sram_pool_data = of_gen_pool_get(np, "pm-sram", 1);
if (!sram_pool_data) {
dev_err(pm33xx_dev, "PM: %s: Unable to get sram data pool for ocmcram\n",
__func__);
ret = -ENODEV;
goto mpu_put_node;
}
if (!sram_pool_data)
return dev_err_probe(pm33xx_dev, -ENODEV,
"PM: %s: Unable to get sram data pool for ocmcram\n",
__func__);
ocmcram_location = gen_pool_alloc(sram_pool, *pm_sram->do_wfi_sz);
if (!ocmcram_location) {
dev_err(pm33xx_dev, "PM: %s: Unable to allocate memory from ocmcram\n",
__func__);
ret = -ENOMEM;
goto mpu_put_node;
}
if (!ocmcram_location)
return dev_err_probe(pm33xx_dev, -ENOMEM,
"PM: %s: Unable to allocate memory from ocmcram\n",
__func__);
ocmcram_location_data = gen_pool_alloc(sram_pool_data,
sizeof(struct emif_regs_amx3));
if (!ocmcram_location_data) {
dev_err(pm33xx_dev, "PM: Unable to allocate memory from ocmcram\n");
gen_pool_free(sram_pool, ocmcram_location, *pm_sram->do_wfi_sz);
ret = -ENOMEM;
return dev_err_probe(pm33xx_dev, -ENOMEM,
"PM: Unable to allocate memory from ocmcram\n");
}
mpu_put_node:
of_node_put(np);
return ret;
return 0;
}
static int am33xx_pm_rtc_setup(void)