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authorAndrew Morton <akpm@osdl.org>2006-12-06 23:37:29 -0500
committerLinus Torvalds <torvalds@woody.osdl.org>2006-12-07 11:39:36 -0500
commit28ec24e23229ae3d333f8d7f0e6b31fa8ea7bf46 (patch)
tree92b1a54da4d5e4982540b7dffa9525f75005f92a /drivers/base/memory.c
parent0d75565f1e8f098b80a34ccf70db450f60618ec8 (diff)
[PATCH] driver/base/memory.c: handle errors properly
Do proper error-checking and propagation in drivers/base/memory.c, hence fix __must_check warnings. Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/base/memory.c')
-rw-r--r--drivers/base/memory.c34
1 files changed, 23 insertions, 11 deletions
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index c6b7d9c4b65..74b96795d2f 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -290,9 +290,8 @@ static CLASS_ATTR(block_size_bytes, 0444, print_block_size, NULL);
290 290
291static int block_size_init(void) 291static int block_size_init(void)
292{ 292{
293 sysfs_create_file(&memory_sysdev_class.kset.kobj, 293 return sysfs_create_file(&memory_sysdev_class.kset.kobj,
294 &class_attr_block_size_bytes.attr); 294 &class_attr_block_size_bytes.attr);
295 return 0;
296} 295}
297 296
298/* 297/*
@@ -323,12 +322,14 @@ static CLASS_ATTR(probe, 0700, NULL, memory_probe_store);
323 322
324static int memory_probe_init(void) 323static int memory_probe_init(void)
325{ 324{
326 sysfs_create_file(&memory_sysdev_class.kset.kobj, 325 return sysfs_create_file(&memory_sysdev_class.kset.kobj,
327 &class_attr_probe.attr); 326 &class_attr_probe.attr);
328 return 0;
329} 327}
330#else 328#else
331#define memory_probe_init(...) do {} while (0) 329static inline int memory_probe_init(void)
330{
331 return 0;
332}
332#endif 333#endif
333 334
334/* 335/*
@@ -431,9 +432,12 @@ int __init memory_dev_init(void)
431{ 432{
432 unsigned int i; 433 unsigned int i;
433 int ret; 434 int ret;
435 int err;
434 436
435 memory_sysdev_class.kset.uevent_ops = &memory_uevent_ops; 437 memory_sysdev_class.kset.uevent_ops = &memory_uevent_ops;
436 ret = sysdev_class_register(&memory_sysdev_class); 438 ret = sysdev_class_register(&memory_sysdev_class);
439 if (ret)
440 goto out;
437 441
438 /* 442 /*
439 * Create entries for memory sections that were found 443 * Create entries for memory sections that were found
@@ -442,11 +446,19 @@ int __init memory_dev_init(void)
442 for (i = 0; i < NR_MEM_SECTIONS; i++) { 446 for (i = 0; i < NR_MEM_SECTIONS; i++) {
443 if (!valid_section_nr(i)) 447 if (!valid_section_nr(i))
444 continue; 448 continue;
445 add_memory_block(0, __nr_to_section(i), MEM_ONLINE, 0); 449 err = add_memory_block(0, __nr_to_section(i), MEM_ONLINE, 0);
450 if (!ret)
451 ret = err;
446 } 452 }
447 453
448 memory_probe_init(); 454 err = memory_probe_init();
449 block_size_init(); 455 if (!ret)
450 456 ret = err;
457 err = block_size_init();
458 if (!ret)
459 ret = err;
460out:
461 if (ret)
462 printk(KERN_ERR "%s() failed: %d\n", __FUNCTION__, ret);
451 return ret; 463 return ret;
452} 464}