PM: hibernate: Drop NULL pointer checks before acomp_request_free()

Since acomp_request_free() checks its argument against NULL, the NULL
pointer checks before calling it added by commit ("7966cf0ebe32 PM:
hibernate: Fix crash when freeing invalid crypto compressor") are
redundant, so drop them.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/6233709.lOV4Wx5bFT@rafael.j.wysocki

Author: rafaeljw

kernel/power/swap.c

@@ -902,8 +902,8 @@ static int save_compressed_image(struct swap_map_handle *handle,
 		for (thr = 0; thr < nr_threads; thr++) {
 			if (data[thr].thr)
 				kthread_stop(data[thr].thr);
-			if (data[thr].cr)
-				acomp_request_free(data[thr].cr);
+
+			acomp_request_free(data[thr].cr);
 
 			if (!IS_ERR_OR_NULL(data[thr].cc))
 				crypto_free_acomp(data[thr].cc);
@@ -1502,8 +1502,8 @@ static int load_compressed_image(struct swap_map_handle *handle,
 		for (thr = 0; thr < nr_threads; thr++) {
 			if (data[thr].thr)
 				kthread_stop(data[thr].thr);
-			if (data[thr].cr)
-				acomp_request_free(data[thr].cr);
+
+			acomp_request_free(data[thr].cr);
 
 			if (!IS_ERR_OR_NULL(data[thr].cc))
 				crypto_free_acomp(data[thr].cc);