Hi Hans, On 09 May 12:34 PM, Hans Verkuil wrote: > On 04/17/2014 02:28 PM, Ezequiel Garcia wrote: > > Currently stk1160_read_reg() uses a stack-allocated char to get the > > read control value. This is wrong because usb_control_msg() requires > > a kmalloc-ed buffer. > > > > This commit fixes such issue by kmalloc'ating a 1-byte buffer to receive > > the read value. > > > > While here, let's remove the urb_buf array which was meant for a similar > > purpose, but never really used. > > Rather than allocating and freeing a buffer for every read_reg I would allocate > this buffer in the probe function. > > That way this allocation is done only once. > Hm... sorry for being so stubborn, but I've just noticed that having a shared buffer would require adding a spinlock to protect it, where the current proposal doesn't need it. Do you still think that's the right thing to do? Thanks! -- Ezequiel García, Free Electrons Embedded Linux, Kernel and Android Engineering http://free-electrons.com -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
