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修正dfs在fd_get时，未检查有效性的问题

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This commit is contained in:
shaojinchun 2018-12-10 08:33:17 +08:00
parent 538923d34e
commit 56c0df1e58
1 changed files with 1 additions and 1 deletions
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2
components/dfs/src/dfs.c
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@ -221,7 +221,7 @@ struct dfs_fd *fd_get(int fd)
d = fdt->fds[fd];
/* check dfs_fd valid or not */
if (d->magic != DFS_FD_MAGIC)
if ((d == NULL) || (d->magic != DFS_FD_MAGIC))
{
dfs_unlock();
return NULL;