diff options
Diffstat (limited to 'drivers/mmc/core')
| -rw-r--r-- | drivers/mmc/core/slot-gpio.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/mmc/core/slot-gpio.c b/drivers/mmc/core/slot-gpio.c index 86803a3a04dc..e5bb86b02373 100644 --- a/drivers/mmc/core/slot-gpio.c +++ b/drivers/mmc/core/slot-gpio.c @@ -27,8 +27,8 @@ struct mmc_gpio { bool override_cd_active_level; irqreturn_t (*cd_gpio_isr)(int irq, void *dev_id); char *ro_label; + char *cd_label; u32 cd_debounce_delay_ms; - char cd_label[]; }; static irqreturn_t mmc_gpio_cd_irqt(int irq, void *dev_id) @@ -45,15 +45,19 @@ static irqreturn_t mmc_gpio_cd_irqt(int irq, void *dev_id) int mmc_gpio_alloc(struct mmc_host *host) { - size_t len = strlen(dev_name(host->parent)) + 4; struct mmc_gpio *ctx = devm_kzalloc(host->parent, - sizeof(*ctx) + 2 * len, GFP_KERNEL); + sizeof(*ctx), GFP_KERNEL); if (ctx) { - ctx->ro_label = ctx->cd_label + len; ctx->cd_debounce_delay_ms = 200; - snprintf(ctx->cd_label, len, "%s cd", dev_name(host->parent)); - snprintf(ctx->ro_label, len, "%s ro", dev_name(host->parent)); + ctx->cd_label = devm_kasprintf(host->parent, GFP_KERNEL, + "%s cd", dev_name(host->parent)); + if (!ctx->cd_label) + return -ENOMEM; + ctx->ro_label = devm_kasprintf(host->parent, GFP_KERNEL, + "%s ro", dev_name(host->parent)); + if (!ctx->ro_label) + return -ENOMEM; host->slot.handler_priv = ctx; host->slot.cd_irq = -EINVAL; } |