memblock: memblock_alloc_try_nid: don't panic

As all the memblock_alloc*() users are now checking the return value and
panic() in case of error, the panic() call can be removed from the core
memblock allocator, namely memblock_alloc_try_nid().

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Mike Rapoport <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Christophe Leroy <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: "David S. Miller" <[email protected]>
Cc: Dennis Zhou <[email protected]>
Cc: Geert Uytterhoeven <[email protected]>
Cc: Greentime Hu <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Guan Xuetao <[email protected]>
Cc: Guo Ren <[email protected]>
Cc: Guo Ren <[email protected]>				[c-sky]
Cc: Heiko Carstens <[email protected]>
Cc: Juergen Gross <[email protected]>			[Xen]
Cc: Mark Salter <[email protected]>
Cc: Matt Turner <[email protected]>
Cc: Max Filippov <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Michal Simek <[email protected]>
Cc: Paul Burton <[email protected]>
Cc: Petr Mladek <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Rich Felker <[email protected]>
Cc: Rob Herring <[email protected]>
Cc: Rob Herring <[email protected]>
Cc: Russell King <[email protected]>
Cc: Stafford Horne <[email protected]>
Cc: Tony Luck <[email protected]>
Cc: Vineet Gupta <[email protected]>
Cc: Yoshinori Sato <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

mm/memblock.c

@@ -1469,7 +1469,7 @@ void * __init memblock_alloc_try_nid_nopanic(
 }
 
 /**
- * memblock_alloc_try_nid - allocate boot memory block with panicking
+ * memblock_alloc_try_nid - allocate boot memory block
  * @size: size of memory block to be allocated in bytes
  * @align: alignment of the region and block's size
  * @min_addr: the lower bound of the memory region from where the allocation
@@ -1479,9 +1479,8 @@ void * __init memblock_alloc_try_nid_nopanic(
  *	      allocate only from memory limited by memblock.current_limit value
  * @nid: nid of the free area to find, %NUMA_NO_NODE for any node
  *
- * Public panicking version of memblock_alloc_try_nid_nopanic()
- * which provides debug information (including caller info), if enabled,
- * and panics if the request can not be satisfied.
+ * Public function, provides additional debug information (including caller
+ * info), if enabled. This function zeroes the allocated memory.
  *
  * Return:
  * Virtual address of allocated memory block on success, NULL on failure.
@@ -1498,14 +1497,10 @@ void * __init memblock_alloc_try_nid(
 		     &max_addr, (void *)_RET_IP_);
 	ptr = memblock_alloc_internal(size, align,
 					   min_addr, max_addr, nid);
-	if (ptr) {
+	if (ptr)
 		memset(ptr, 0, size);
-		return ptr;
-	}
 
-	panic("%s: Failed to allocate %llu bytes align=0x%llx nid=%d from=%pa max_addr=%pa\n",
-	      __func__, (u64)size, (u64)align, nid, &min_addr, &max_addr);
-	return NULL;
+	return ptr;
 }
 
 /**