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update dfs.c of File System

This commit is contained in:
yangfasheng 2018-07-29 12:07:36 +08:00
parent e6fedb6e9b
commit e13f1d9e7f
1 changed files with 4 additions and 4 deletions
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8
components/dfs/src/dfs.c
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@ -152,7 +152,7 @@ static int fd_alloc(struct dfs_fdtable *fdt, int startfd)
cnt = cnt > DFS_FD_MAX? DFS_FD_MAX : cnt; cnt = cnt > DFS_FD_MAX? DFS_FD_MAX : cnt;
fds = rt_realloc(fdt->fds, cnt * sizeof(struct dfs_fd *)); fds = rt_realloc(fdt->fds, cnt * sizeof(struct dfs_fd *));
if (fds == NULL) goto __out; /* return fdt->maxfd */ if (fds == NULL) goto __exit; /* return fdt->maxfd */
/* clean the new allocated fds */ /* clean the new allocated fds */
for (index = fdt->maxfd; index < cnt; index ++) for (index = fdt->maxfd; index < cnt; index ++)
@ -167,12 +167,12 @@ static int fd_alloc(struct dfs_fdtable *fdt, int startfd)
/* allocate 'struct dfs_fd' */ /* allocate 'struct dfs_fd' */
if (idx < fdt->maxfd &&fdt->fds[idx] == RT_NULL) if (idx < fdt->maxfd &&fdt->fds[idx] == RT_NULL)
{ {
fdt->fds[idx] = rt_malloc(sizeof(struct dfs_fd)); fdt->fds[idx] = rt_calloc(1, sizeof(struct dfs_fd));
if (fdt->fds[idx] == RT_NULL) if (fdt->fds[idx] == RT_NULL)
idx = fdt->maxfd; idx = fdt->maxfd;
} }
__out: __exit:
return idx; return idx;
} }
@ -323,7 +323,7 @@ int fd_is_open(const char *pathname)
for (index = 0; index < fdt->maxfd; index++) for (index = 0; index < fdt->maxfd; index++)
{ {
fd = fdt->fds[index]; fd = fdt->fds[index];
if (fd == NULL) continue; if (fd == NULL || fd->fops == NULL || fd->path == NULL) continue;
if (fd->fops == fs->ops->fops && strcmp(fd->path, mountpath) == 0) if (fd->fops == fs->ops->fops && strcmp(fd->path, mountpath) == 0)
{ {