4.16-stable review patch. If anyone has any objections, please let me know. ------------------ From: Himanshu Jha <himanshujha199640@xxxxxxxxx> commit 6073a09210e06f39adabd682c282b3ee14c3d33d upstream. Use kasprintf instead of combination of kmalloc and sprintf. Also, remove the local variables used for storing the string length as they are not required now. Signed-off-by: Himanshu Jha <himanshujha199640@xxxxxxxxx> Reviewed-by: Sinclair Yeh <syeh@xxxxxxxxxx> Signed-off-by: Thomas Hellstrom <thellstrom@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/vmwgfx/vmwgfx_msg.c | 13 +++---------- 1 file changed, 3 insertions(+), 10 deletions(-) --- a/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c @@ -328,7 +328,7 @@ int vmw_host_get_guestinfo(const char *g { struct rpc_channel channel; char *msg, *reply = NULL; - size_t msg_len, reply_len = 0; + size_t reply_len = 0; int ret = 0; @@ -338,15 +338,12 @@ int vmw_host_get_guestinfo(const char *g if (!guest_info_param || !length) return -EINVAL; - msg_len = strlen(guest_info_param) + strlen("info-get ") + 1; - msg = kzalloc(msg_len, GFP_KERNEL); + msg = kasprintf(GFP_KERNEL, "info-get %s", guest_info_param); if (!msg) { DRM_ERROR("Cannot allocate memory to get %s", guest_info_param); return -ENOMEM; } - sprintf(msg, "info-get %s", guest_info_param); - if (vmw_open_channel(&channel, RPCI_PROTOCOL_NUM) || vmw_send_msg(&channel, msg) || vmw_recv_msg(&channel, (void *) &reply, &reply_len) || @@ -388,7 +385,6 @@ int vmw_host_log(const char *log) { struct rpc_channel channel; char *msg; - int msg_len; int ret = 0; @@ -398,15 +394,12 @@ int vmw_host_log(const char *log) if (!log) return ret; - msg_len = strlen(log) + strlen("log ") + 1; - msg = kzalloc(msg_len, GFP_KERNEL); + msg = kasprintf(GFP_KERNEL, "log %s", log); if (!msg) { DRM_ERROR("Cannot allocate memory for log message\n"); return -ENOMEM; } - sprintf(msg, "log %s", log); - if (vmw_open_channel(&channel, RPCI_PROTOCOL_NUM) || vmw_send_msg(&channel, msg) || vmw_close_channel(&channel)) {