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mm/kasan/init.c: remove unnecessary pointer variables

Simplify the code to enhance readability and maintain a consistent
coding style.

Link: https://lkml.kernel.org/r/20250811034257.154862-1-zhao.xichao@vivo.com
Signed-off-by: Xichao Zhao <zhao.xichao@vivo.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Reviewed-by: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitriy Vyukov <dvyukov@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

authored by

Xichao Zhao and committed by
Andrew Morton 3e86861d d9d1c2d8

+1 -3
+1 -3
mm/kasan/init.c
··· 266 266 } 267 267 268 268 if (pgd_none(*pgd)) { 269 - p4d_t *p; 270 269 271 270 if (slab_is_available()) { 272 - p = p4d_alloc(&init_mm, pgd, addr); 273 - if (!p) 271 + if (!p4d_alloc(&init_mm, pgd, addr)) 274 272 return -ENOMEM; 275 273 } else { 276 274 pgd_populate_kernel(addr, pgd,