diff options
| author | Brian Norris <computersforpeace@gmail.com> | 2015-06-02 02:17:18 +0300 |
|---|---|---|
| committer | Brian Norris <computersforpeace@gmail.com> | 2015-06-17 04:47:06 +0300 |
| commit | 57dd990c5e9c4664f3db4cba271c808ca7adf9e5 (patch) | |
| tree | deb9049881f05845774a03093b86d458de6db7b8 /drivers/mtd | |
| parent | 6a7c7334fe250b53c42eb9d3887fd42bdc9d0d28 (diff) | |
| download | linux-57dd990c5e9c4664f3db4cba271c808ca7adf9e5.tar.xz | |
mtd: propagate error codes from add_mtd_device()
It makes more sense to return error statuses, not 1/0.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Reviewed-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/mtdcore.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index f3ca97f139bc..8bbbb751bf45 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -379,8 +379,7 @@ static int mtd_reboot_notifier(struct notifier_block *n, unsigned long state, * * Add a device to the list of MTD devices present in the system, and * notify each currently active MTD 'user' of its arrival. Returns - * zero on success or 1 on failure, which currently will only happen - * if there is insufficient memory or a sysfs error. + * zero on success or non-zero on failure. */ int add_mtd_device(struct mtd_info *mtd) @@ -394,8 +393,10 @@ int add_mtd_device(struct mtd_info *mtd) mutex_lock(&mtd_table_mutex); i = idr_alloc(&mtd_idr, mtd, 0, 0, GFP_KERNEL); - if (i < 0) + if (i < 0) { + error = i; goto fail_locked; + } mtd->index = i; mtd->usecount = 0; @@ -424,6 +425,8 @@ int add_mtd_device(struct mtd_info *mtd) printk(KERN_WARNING "%s: unlock failed, writes may not work\n", mtd->name); + /* Ignore unlock failures? */ + error = 0; } /* Caller should have set dev.parent to match the @@ -434,7 +437,8 @@ int add_mtd_device(struct mtd_info *mtd) mtd->dev.devt = MTD_DEVT(i); dev_set_name(&mtd->dev, "mtd%d", i); dev_set_drvdata(&mtd->dev, mtd); - if (device_register(&mtd->dev) != 0) + error = device_register(&mtd->dev); + if (error) goto fail_added; device_create(&mtd_class, mtd->dev.parent, MTD_DEVT(i) + 1, NULL, @@ -458,7 +462,7 @@ fail_added: idr_remove(&mtd_idr, i); fail_locked: mutex_unlock(&mtd_table_mutex); - return 1; + return error; } /** @@ -514,8 +518,8 @@ static int mtd_add_device_partitions(struct mtd_info *mtd, if (nbparts == 0 || IS_ENABLED(CONFIG_MTD_PARTITIONED_MASTER)) { ret = add_mtd_device(mtd); - if (ret == 1) - return -ENODEV; + if (ret) + return ret; } if (nbparts > 0) { |