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3 Commits

Author SHA1 Message Date
Keguang Zhang
615f8f5077 mtd: rawnand: loongson1: Fix inconsistent refcounting in ls1x_nand_chip_init() 
As reported by Dan,
commit d2d10ede04 ("mtd: rawnand: Add Loongson-1 NAND Controller
Driver"), leads to the following Smatch static checker warning:

drivers/mtd/nand/raw/loongson1-nand-controller.c:730 ls1x_nand_chip_init()
warn: inconsistent refcounting 'chip_np->kobj.kref.refcount.refs.counter':

Fix this issue by calling of_node_put() immediately after using chip_np.
In addition, remove all unnecessary of_node_put(chip_np) calls.

Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/all/aBR535RZZT-sa6QZ@stanley.mountain/
Fixes: d2d10ede04 ("mtd: rawnand: Add Loongson-1 NAND Controller Driver")
Signed-off-by: Keguang Zhang <keguang.zhang@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
 2025-05-12 16:28:21 +02:00
Dan Carpenter
0d470c72be mtd: rawnand: loongson1: Fix error code in ls1x_nand_dma_transfer() 
The "desc" variable is NULL and PTR_ERR(NULL) is zero/success.  Return
a negative error code instead.

Fixes: d2d10ede04 ("mtd: rawnand: Add Loongson-1 NAND Controller Driver")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
 2025-05-12 16:28:15 +02:00
Keguang Zhang
d2d10ede04 mtd: rawnand: Add Loongson-1 NAND Controller Driver 
Add NAND controller driver for Loongson-1 SoCs.

Signed-off-by: Keguang Zhang <keguang.zhang@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
 2025-04-28 10:10:39 +02:00