diff options
Diffstat (limited to 'drivers/mfd/m4sensorhub-stm32-fw.c')
| -rw-r--r-- | drivers/mfd/m4sensorhub-stm32-fw.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/mfd/m4sensorhub-stm32-fw.c b/drivers/mfd/m4sensorhub-stm32-fw.c index bf5597840b4..3b3a366828c 100644 --- a/drivers/mfd/m4sensorhub-stm32-fw.c +++ b/drivers/mfd/m4sensorhub-stm32-fw.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012 Motorola, Inc. + * Copyright (C) 2012-2014 Motorola, Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -119,8 +119,15 @@ int m4sensorhub_load_firmware(struct m4sensorhub_data *m4sensorhub, u32 barker_read_from_device; int j = 0; + if (m4sensorhub == NULL) { + KDEBUG(M4SH_ERROR, "%s: M4 data is NULL\n", __func__); + ret = -ENODATA; + goto done; + } + buf = kzalloc(MAX_TRANSFER_SIZE+8, GFP_KERNEL); if (!buf) { + KDEBUG(M4SH_ERROR, "%s: Failed to allocate buf\n", __func__); ret = -ENOMEM; goto done; } @@ -130,12 +137,13 @@ int m4sensorhub_load_firmware(struct m4sensorhub_data *m4sensorhub, } if (ret < 0) { KDEBUG(M4SH_ERROR, "%s: request_firmware failed for %s\n", - __func__, m4sensorhub->filename); + __func__, m4sensorhub->filename); KDEBUG(M4SH_ERROR, "Trying to run firmware already on hw.\n"); ret = 0; goto done; } - KDEBUG(M4SH_INFO, "%s:Firmware = %s\n", m4sensorhub->filename, __func__); + KDEBUG(M4SH_INFO, "%s: Firmware = %s\n", + __func__, m4sensorhub->filename); if (firmware->size > MAX_FILE_SIZE) { KDEBUG(M4SH_ERROR, "%s: firmware file size is too big.\n", @@ -408,7 +416,7 @@ static int m4sensorhub_jump_to_user(struct m4sensorhub_data *m4sensorhub) __func__, __LINE__); return ret; } - KDEBUG(M4SH_NOTICE, "Executing M4 code \n"); + KDEBUG(M4SH_NOTICE, "Executing M4 code\n"); msleep(5000); /* 5 secs delay */ ret = 0; } else { |