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vfs: fix NULL pointer dereference in esp_vfs_unregister

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This commit is contained in:
Ivan Grokhotkov 2017-06-21 13:54:04 +08:00
parent 2ccfe3da96
commit 4f71b4574a
2 changed files with 5 additions and 2 deletions
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4
components/vfs/test/test_vfs_paths.c
View File

@ -23,8 +23,6 @@
#include "unity.h"
#include "esp_log.h"
static const char* TAG = "test_vfs_paths";
/* Dummy VFS implementation to check if VFS is called or not with expected path
*/
typedef struct {
@ -175,4 +173,6 @@ TEST_CASE("vfs parses paths correctly", "[vfs]")
test_not_called(&inst_foo1, "/foo/file1");
test_opened(&inst_foo1, "/foo1/file1");
test_not_opened(&inst_foo1, "/foo1/file");
TEST_ESP_OK( esp_vfs_unregister("/foo") );
TEST_ESP_OK( esp_vfs_unregister("/foo1") );
}

3
components/vfs/vfs.c
View File

@ -91,6 +91,9 @@ esp_err_t esp_vfs_unregister(const char* base_path)
{
for (size_t i = 0; i < s_vfs_count; ++i) {
vfs_entry_t* vfs = s_vfs[i];
if (vfs == NULL) {
continue;
}
if (memcmp(base_path, vfs->path_prefix, vfs->path_prefix_len) == 0) {
free(vfs);
s_vfs[i] = NULL;