修复dev 文件夹mmap bug

0a40c543 · zhOu · Gitee · e901790b · 0a40c543
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kernel/base/vm/los_vm_filemap.c kernel/base/vm/los_vm_filemap.c +1 -1

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--- a/kernel/base/vm/los_vm_filemap.c
+++ b/kernel/base/vm/los_vm_filemap.c
@@ -661,7 +661,7 @@ STATUS_T OsNamedMMap(struct file *filep, LosVmMapRegion *region)
            return LOS_ERRNO_VM_MAP_FAILED;
        }
    } else if (INODE_IS_DRIVER(inodePtr)) {
-        if (inodePtr->u.i_ops->mmap) {
+        if (inodePtr->u.i_ops && inodePtr->u.i_ops->mmap) {
            LOS_SetRegionTypeDev(region);
            return inodePtr->u.i_ops->mmap(filep, region);
        } else {