[PATCH v1 02/12] nand: don't overwrite mtd name in nand_register()

[Alexey Romanov]

We use this function in SPI NAND subsystem, which already
filled mtd->name field with "spi-nand0" string.

Signed-off-by: Alexey Romanov <avroma...@salutedevices.com>
---
 drivers/mtd/nand/core.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/nand/core.c b/drivers/mtd/nand/core.c
index ff298e3a0f..5a63e74ccb 100644
--- a/drivers/mtd/nand/core.c
+++ b/drivers/mtd/nand/core.c
@@ -22,7 +22,7 @@
 int nand_curr_device = -1;
 
 static struct mtd_info *nand_info[CONFIG_SYS_MAX_NAND_DEVICE];
-static char dev_name[CONFIG_SYS_MAX_NAND_DEVICE][8];
+static char dev_name[CONFIG_SYS_MAX_NAND_DEVICE][16];
 static unsigned long total_nand_size; /* in kiB */
 
 /**
@@ -288,8 +288,12 @@ int nand_register(int devnum, struct mtd_info *mtd)
 
        nand_info[devnum] = mtd;
 
-       sprintf(dev_name[devnum], "nand%d", devnum);
-       mtd->name = dev_name[devnum];
+       if (!strlen(mtd->name)) {
+               snprintf(dev_name[devnum], ARRAY_SIZE(dev_name[devnum]), 
"nand%d", devnum);
+               mtd->name = dev_name[devnum];
+       } else {
+               strlcpy(dev_name[devnum], mtd->name, 
ARRAY_SIZE(dev_name[devnum]));
+       }
 
 #ifdef CONFIG_MTD
        /*
-- 
2.30.1