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Merge pull request #2050 from jesven/lwp-mcore

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修正dfs在fd_get时，未检查有效性的问题
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Bernard Xiong 2018-12-10 09:21:10 +08:00 committed by GitHub
commit 09a9e82fef
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1 changed files with 1 additions and 1 deletions
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components/dfs/src/dfs.c
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@ -221,7 +221,7 @@ struct dfs_fd *fd_get(int fd)
d = fdt->fds[fd]; d = fdt->fds[fd];
/* check dfs_fd valid or not */ /* check dfs_fd valid or not */
if (d->magic != DFS_FD_MAGIC) if ((d == NULL) || (d->magic != DFS_FD_MAGIC))
{ {
dfs_unlock(); dfs_unlock();
return NULL; return NULL;