4.4-stable review patch. If anyone has any objections, please let me know.
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From: Colin Ian King colin.king@canonical.com
commit 45288978859119c019eff93f0cb838a0de100bcc upstream.
source is decleared as a 4 byte char array in struct acpi_pci_routing_table so !prt->source is a redundant null string pointer check. Detected with smatch:
drivers/acpi/pci_irq.c:134 do_prt_fixups() warn: this array is probably non-NULL. 'prt->source'
Signed-off-by: Colin Ian King colin.king@canonical.com Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com Cc: Nathan Chancellor natechancellor@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/acpi/pci_irq.c | 3 --- 1 file changed, 3 deletions(-)
--- a/drivers/acpi/pci_irq.c +++ b/drivers/acpi/pci_irq.c @@ -131,9 +131,6 @@ static void do_prt_fixups(struct acpi_pr quirk = &prt_quirks[i];
/* All current quirks involve link devices, not GSIs */ - if (!prt->source) - continue; - if (dmi_check_system(quirk->system) && entry->id.segment == quirk->segment && entry->id.bus == quirk->bus &&