From: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
commit 383fc3f613e7eac9f2e3c13b6f9fb8c1f39cb9d5 upstream.
All initialized and registered devices should be listed somewhere so
that we can unregister/free them in the _remove() path.
This patch is not a fix per-se but is needed to apply three other
fixes coming right after, explaining the Fixes/Cc: stable tags.
Fixes: 668592492409 ("mtd: nand: Add OX820 NAND Support")
Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-36-miquel.raynal@xxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/mtd/nand/raw/oxnas_nand.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
--- a/drivers/mtd/nand/raw/oxnas_nand.c
+++ b/drivers/mtd/nand/raw/oxnas_nand.c
@@ -32,6 +32,7 @@ struct oxnas_nand_ctrl {
void __iomem *io_base;
struct clk *clk;
struct nand_chip *chips[OXNAS_NAND_MAX_CHIPS];
+ unsigned int nchips;
};
static uint8_t oxnas_nand_read_byte(struct nand_chip *chip)
@@ -79,7 +80,6 @@ static int oxnas_nand_probe(struct platf
struct nand_chip *chip;
struct mtd_info *mtd;
struct resource *res;
- int nchips = 0;
int count = 0;
int err = 0;
@@ -143,12 +143,12 @@ static int oxnas_nand_probe(struct platf
if (err)
goto err_cleanup_nand;
- oxnas->chips[nchips] = chip;
- ++nchips;
+ oxnas->chips[oxnas->nchips] = chip;
+ ++oxnas->nchips;
}
/* Exit if no chips found */
- if (!nchips) {
+ if (!oxnas->nchips) {
err = -ENODEV;
goto err_clk_unprepare;
}
