On 03/15/2013 09:34 AM, Laxman Dewangan wrote: > NVIDIA's Tegra SoC allows read/write of controller register only > if controller clock is enabled. System hangs if read/write happens > to registers without enabling clock. > > clk_prepare_enable() can be fail due to unknown reason and hence > adding check for return value of this function. If this function > success then only access register otherwise return to caller with > error. Wolfram, Reviewed-by: Stephen Warren <swarren@xxxxxxxxxx> This is probably suitable for Cc: stable. -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html