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authorArnaldo Carvalho de Melo <acme@redhat.com>2021-08-30 10:05:46 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2021-08-30 10:05:46 -0300
commitc635813fef0b2327ffecbfbd642f0009e186b3a5 (patch)
tree10ce89c8b5c36b890123024849cfd3f53e0affc5 /drivers/acpi/prmt.c
parent37c3193fa4d7ddf93947264fa38d71120ff20c2a (diff)
parent7d2a07b769330c34b4deabeed939325c77a7ec2f (diff)
Merge remote-tracking branch 'torvalds/master' into perf/core
To pick up fixes. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'drivers/acpi/prmt.c')
-rw-r--r--drivers/acpi/prmt.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/acpi/prmt.c b/drivers/acpi/prmt.c
index 31cf9aee5edd..1f6007abcf18 100644
--- a/drivers/acpi/prmt.c
+++ b/drivers/acpi/prmt.c
@@ -292,6 +292,12 @@ void __init init_prmt(void)
int mc = acpi_table_parse_entries(ACPI_SIG_PRMT, sizeof(struct acpi_table_prmt) +
sizeof (struct acpi_table_prmt_header),
0, acpi_parse_prmt, 0);
+ /*
+ * Return immediately if PRMT table is not present or no PRM module found.
+ */
+ if (mc <= 0)
+ return;
+
pr_info("PRM: found %u modules\n", mc);
status = acpi_install_address_space_handler(ACPI_ROOT_OBJECT,