[linux-next] bus: fsl-mc: use strscpy() to instead of strncpy()
Commit Message
From: Xu Panda <xu.panda@zte.com.cn>
The implementation of strscpy() is more robust and safer.
That's now the recommended way to copy NUL terminated strings.
Signed-off-by: Xu Panda <xu.panda@zte.com.cn>
Signed-off-by: Yang Yang <yang.yang29@zte.com>
---
drivers/bus/fsl-mc/dprc.c | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)
@@ -450,10 +450,8 @@ int dprc_get_obj(struct fsl_mc_io *mc_io,
obj_desc->ver_major = le16_to_cpu(rsp_params->version_major);
obj_desc->ver_minor = le16_to_cpu(rsp_params->version_minor);
obj_desc->flags = le16_to_cpu(rsp_params->flags);
- strncpy(obj_desc->type, rsp_params->type, 16);
- obj_desc->type[15] = '\0';
- strncpy(obj_desc->label, rsp_params->label, 16);
- obj_desc->label[15] = '\0';
+ strscpy(obj_desc->type, rsp_params->type, 16);
+ strscpy(obj_desc->label, rsp_params->label, 16);
return 0;
}
EXPORT_SYMBOL_GPL(dprc_get_obj);
@@ -491,8 +489,7 @@ int dprc_set_obj_irq(struct fsl_mc_io *mc_io,
cmd_params->irq_addr = cpu_to_le64(irq_cfg->paddr);
cmd_params->irq_num = cpu_to_le32(irq_cfg->irq_num);
cmd_params->obj_id = cpu_to_le32(obj_id);
- strncpy(cmd_params->obj_type, obj_type, 16);
- cmd_params->obj_type[15] = '\0';
+ strscpy(cmd_params->obj_type, obj_type, 16);
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
@@ -564,8 +561,7 @@ int dprc_get_obj_region(struct fsl_mc_io *mc_io,
cmd_params = (struct dprc_cmd_get_obj_region *)cmd.params;
cmd_params->obj_id = cpu_to_le32(obj_id);
cmd_params->region_index = region_index;
- strncpy(cmd_params->obj_type, obj_type, 16);
- cmd_params->obj_type[15] = '\0';
+ strscpy(cmd_params->obj_type, obj_type, 16);
/* send command to mc*/
err = mc_send_command(mc_io, &cmd);