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rk29: vpu_mem: fix pass miscdevice pointer via file private data

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黄涛
2011-12-14 15:16:05 +08:00
parent ad773bac07
commit 006a102f05
1 changed files with 1 additions and 1 deletions
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2
arch/arm/mach-rk29/vpu_mem.c
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@@ -878,7 +878,7 @@ static int vpu_mem_open(struct inode *inode, struct file *file)
DLOG("current %u file %p(%d)\n", current->pid, file, (int)file_count(file));
/* setup file->private_data to indicate its unmapped */
/* you can only open a vpu_mem device one time */
if (file->private_data != NULL)
if (file->private_data != NULL && file->private_data != &vpu_mem.dev)
return -1;
session = kmalloc(sizeof(vdm_session), GFP_KERNEL);
if (!session) {