[PATCH V1] mtd : nand : denali :- No need of devm functions

From: Arvind Yadav
Date: Wed Dec 07 2016 - 10:15:37 EST


In function denali_init, the memory allocated for denali->buf.buf
is live within the function only. After the allocation it is
immediately freed with devm_kfree. There is no need to allocate
memory for denali->buf.buf with devm function so replace
devm_kzalloc with kzalloc and devm_kfree with kfree.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@xxxxxxxxx>
---
drivers/mtd/nand/denali.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c
index 0476ae8..ce3c31f 100644
--- a/drivers/mtd/nand/denali.c
+++ b/drivers/mtd/nand/denali.c
@@ -1476,8 +1476,7 @@ int denali_init(struct denali_nand_info *denali)
}

/* allocate a temporary buffer for nand_scan_ident() */
- denali->buf.buf = devm_kzalloc(denali->dev, PAGE_SIZE,
- GFP_DMA | GFP_KERNEL);
+ denali->buf.buf = kzalloc(PAGE_SIZE, GFP_DMA | GFP_KERNEL);
if (!denali->buf.buf)
return -ENOMEM;

@@ -1492,6 +1491,7 @@ int denali_init(struct denali_nand_info *denali)
if (request_irq(denali->irq, denali_isr, IRQF_SHARED,
DENALI_NAND_NAME, denali)) {
pr_err("Spectra: Unable to allocate IRQ\n");
+ kfree(denali->buf.buf);
return -ENODEV;
}

@@ -1512,11 +1512,12 @@ int denali_init(struct denali_nand_info *denali)
*/
if (nand_scan_ident(mtd, denali->max_banks, NULL)) {
ret = -ENXIO;
+ kfree(denali->buf.buf);
goto failed_req_irq;
}

/* allocate the right size buffer now */
- devm_kfree(denali->dev, denali->buf.buf);
+ kfree(denali->buf.buf);
denali->buf.buf = devm_kzalloc(denali->dev,
mtd->writesize + mtd->oobsize,
GFP_KERNEL);
--
2.7.4