3faa2c802e
The USBHID driver zero-initializes some but not all of the fields in its usbhid_inst_t structure. This is a problem because under some circumstances, some of the uninitialized fields may be read and lead to incorrect behavior. Some (broken) USB keyboards keep sending reports that contain all zeroes even when they have no new keys... these usually get silently ignored, but if the usbhid_inst_t structure is in an inconsistent state where 'previous' is zeroed out but 'lastkeypress' is non-zero because it wasn't properly initialized, these reports will be interpreted as keyrepeats of the bogus 'lastkeypress'. This patch changes the code to just xzalloc() the whole structure so we won't have to worry about initialization issues anymore. Change-Id: Ic987de2daaceaad2ae401a1e12b1bee397f802ee Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/23766 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> |
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| .. | ||
| serial | ||
| storage | ||
| timer | ||
| udc | ||
| usb | ||
| video | ||
| Makefile.inc | ||
| cbmem_console.c | ||
| hid.c | ||
| keyboard.c | ||
| mouse_cursor.c | ||
| nvram.c | ||
| options.c | ||
| pci.c | ||
| speaker.c | ||