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feat(fsdrv): add posix lseek() error checking (#3444)

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Co-authored-by: pengyiqiang <pengyiqiang@xiaomi.com>
This commit is contained in:
_VIFEXTech
2022-07-04 21:03:49 +08:00
committed by GitHub
parent f3a07a3e8a
commit 23c8a91a11
1 changed files with 5 additions and 4 deletions
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src/extra/libs/fsdrv/lv_fs_posix.c
+5 -4
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@@ -176,8 +176,8 @@ static lv_fs_res_t fs_write(lv_fs_drv_t * drv, void * file_p, const void * buf,
static lv_fs_res_t fs_seek(lv_fs_drv_t * drv, void * file_p, uint32_t pos, lv_fs_whence_t whence) static lv_fs_res_t fs_seek(lv_fs_drv_t * drv, void * file_p, uint32_t pos, lv_fs_whence_t whence)
{ {
LV_UNUSED(drv); LV_UNUSED(drv);
lseek((lv_uintptr_t)file_p, pos, whence); off_t offset = lseek((lv_uintptr_t)file_p, pos, whence);
return LV_FS_RES_OK; return offset < 0 ? LV_FS_RES_FS_ERR : LV_FS_RES_OK;
} }
/** /**
@@ -191,8 +191,9 @@ static lv_fs_res_t fs_seek(lv_fs_drv_t * drv, void * file_p, uint32_t pos, lv_fs
static lv_fs_res_t fs_tell(lv_fs_drv_t * drv, void * file_p, uint32_t * pos_p) static lv_fs_res_t fs_tell(lv_fs_drv_t * drv, void * file_p, uint32_t * pos_p)
{ {
LV_UNUSED(drv); LV_UNUSED(drv);
*pos_p = lseek((lv_uintptr_t)file_p, 0, SEEK_CUR); off_t offset = lseek((lv_uintptr_t)file_p, 0, SEEK_CUR);
return LV_FS_RES_OK; *pos_p = offset;
return offset < 0 ? LV_FS_RES_FS_ERR : LV_FS_RES_OK;
} }
#ifdef WIN32 #ifdef WIN32