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MIPS: BCM47xx: Fix nvram_getenv return value.

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Nvram_getenv should behave like cfe_getenv. cfe_getenv returns 0 on
success and -9 if the value was not found. If the input was wrong -8
will be returned by cfe_getenv.  Change nvram_getenv to do the same.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: Waldemar Brodkorb <wbx@openadk.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1520/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Hauke Mehrtens 2010-08-02 23:56:22 +02:00 committed by Ralf Baechle
parent 2b5987abaf
commit 47a3486144
2 changed files with 5 additions and 2 deletions
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4
arch/mips/bcm47xx/nvram.c
View File

@ -69,7 +69,7 @@ int nvram_getenv(char *name, char *val, size_t val_len)
char *var, *value, *end, *eq;
if (!name)
return 1;
return NVRAM_ERR_INV_PARAM;
if (!nvram_buf[0])
early_nvram_init();
@ -89,6 +89,6 @@ int nvram_getenv(char *name, char *val, size_t val_len)
return 0;
}
}
return 1;
return NVRAM_ERR_ENVNOTFOUND;
}
EXPORT_SYMBOL(nvram_getenv);

3
arch/mips/include/asm/mach-bcm47xx/nvram.h
View File

@ -31,6 +31,9 @@ struct nvram_header {
#define NVRAM_MAX_VALUE_LEN 255
#define NVRAM_MAX_PARAM_LEN 64
#define NVRAM_ERR_INV_PARAM -8
#define NVRAM_ERR_ENVNOTFOUND -9
extern int nvram_getenv(char *name, char *val, size_t val_len);
#endif