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Message-ID: <20240825085714.10736-5-five231003@gmail.com>
Date: Sun, 25 Aug 2024 14:18:45 +0530
From: Kousik Sanagavarapu <five231003@...il.com>
To: Nishanth Menon <nm@...com>,
Jonathan Cameron <Jonathan.Cameron@...wei.com>,
Santosh Shilimkar <ssantosh@...nel.org>,
Nathan Chancellor <nathan@...nel.org>,
Julia Lawall <julia.lawall@...ia.fr>
Cc: Shuah Khan <skhan@...uxfoundation.org>,
Javier Carrasco <javier.carrasco.cruz@...il.com>,
linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
Kousik Sanagavarapu <five231003@...il.com>
Subject: [PATCH v4 4/4] soc: ti: pm33xx: do device_node auto cleanup
Use scope based cleanup instead of manual of_node_put() calls, hence
simplifying the handling of error paths.
Suggested-by: Julia Lawall <julia.lawall@...ia.fr>
Signed-off-by: Kousik Sanagavarapu <five231003@...il.com>
---
drivers/soc/ti/pm33xx.c | 52 +++++++++++++++++------------------------
1 file changed, 21 insertions(+), 31 deletions(-)
diff --git a/drivers/soc/ti/pm33xx.c b/drivers/soc/ti/pm33xx.c
index 3a56bbf3268a..8169885ab1e0 100644
--- a/drivers/soc/ti/pm33xx.c
+++ b/drivers/soc/ti/pm33xx.c
@@ -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)
--
2.46.0.290.g4f02c709e8.dirty
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