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093174f525
The UGA draw protocol discovery routine looks for a EFI handle that has both the UGA draw protocol and the PCI I/O protocol installed. It checks for the latter by calling handle_protocol() and pass it a PCI I/O protocol pointer variable by reference, but fails to initialize it to NULL, which means the non-NULL check later on in the code could produce false positives, given that the return code of the handle_protocol() call is ignored entirely. So add the missing initialization. Tested-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Lukas Wunner <lukas@wunner.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-efi@vger.kernel.org Link: http://lkml.kernel.org/r/20180720014726.24031-6-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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| .. | ||
| .gitignore | ||
| cmdline.c | ||
| cpuflags.c | ||
| early_serial_console.c | ||
| eboot.c | ||
| eboot.h | ||
| efi_stub_32.S | ||
| efi_stub_64.S | ||
| efi_thunk_64.S | ||
| error.c | ||
| error.h | ||
| head_32.S | ||
| head_64.S | ||
| kaslr_64.c | ||
| kaslr.c | ||
| Makefile | ||
| mem_encrypt.S | ||
| misc.c | ||
| misc.h | ||
| mkpiggy.c | ||
| pgtable_64.c | ||
| pgtable.h | ||
| string.c | ||
| vmlinux.lds.S | ||