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mmc; fix the kernel crasht for th he bug in rk29_sdmmc_progress_store()

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This commit is contained in:
xbw
2012-03-25 14:06:15 +08:00
parent c2d868a415
commit ca86ced287
1 changed files with 6 additions and 7 deletions
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13
drivers/mmc/host/rk29_sdmmc.c
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@@ -299,8 +299,6 @@ ssize_t rk29_sdmmc_progress_store(struct kobject *kobj, struct kobj_attribute *a
return count;
}
spin_lock(&host->lock);
//envalue the address of host base on input-parameter.
if( !strncmp(buf,"sd-" , strlen("sd-")) )
{
@@ -308,7 +306,7 @@ ssize_t rk29_sdmmc_progress_store(struct kobject *kobj, struct kobj_attribute *a
if(!host)
{
printk("%s..%d.. fail to call progress_store because the host is null. ==xbw==\n",__FUNCTION__,__LINE__);
goto progress_store_out;
return count;
}
}
else if( !strncmp(buf,"sdio1-" , strlen("sdio1-")) )
@@ -317,7 +315,7 @@ ssize_t rk29_sdmmc_progress_store(struct kobject *kobj, struct kobj_attribute *a
if(!host)
{
printk("%s..%d.. fail to call progress_store because the host-sdio1 is null. ==xbw==\n",__FUNCTION__,__LINE__);
goto progress_store_out;
return count;
}
}
else if( !strncmp(buf,"sdio2-" , strlen("sdio2-")) )
@@ -326,15 +324,17 @@ ssize_t rk29_sdmmc_progress_store(struct kobject *kobj, struct kobj_attribute *a
if(!host)
{
printk("%s..%d.. fail to call progress_store because the host-sdio2 is null. ==xbw==\n",__FUNCTION__,__LINE__);
goto progress_store_out;
return count;
}
}
else
{
printk("%s..%d.. You want to use sysfs for SDMMC but input-parameter is wrong.====xbw====\n",__FUNCTION__,__LINE__);
goto progress_store_out;//return count;
return count;
}
spin_lock(&host->lock);
if(strncmp(buf,oldbuf , strlen(buf)))
{
printk(".%d.. MMC0 receive the message %s from VOLD.====xbw[%s]====\n", __LINE__, buf, host->dma_name);
@@ -458,7 +458,6 @@ ssize_t rk29_sdmmc_progress_store(struct kobject *kobj, struct kobj_attribute *a
}
}
progress_store_out:
spin_unlock(&host->lock);
return count;