From: Jesper Juhl <[EMAIL PROTECTED]>
The Coverity checker spotted two potential memory leaks in
drivers/message/fusion/mptbase.c::mpt_attach().
There are two returns that may leak the storage allocated for 'ioc'
(sizeof(MPT_ADAPTER) bytes).
A simple fix would be to simply add two kfree() calls before the return
statements, but a better fix (that this patch implements) is to reorder the
code so that if we hit the first return condition we don't have to do the
allocation at all and then just add a kfree() call for the second case.
Signed-off-by: Jesper Juhl <[EMAIL PROTECTED]>
Cc: "Moore, Eric Dean" <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
---
drivers/message/fusion/mptbase.c | 13 +++++++------
1 files changed, 7 insertions(+), 6 deletions(-)
diff -puN
drivers/message/fusion/mptbase.c~mpt-fusion-fix-two-potential-mem-leaks
drivers/message/fusion/mptbase.c
--- a/drivers/message/fusion/mptbase.c~mpt-fusion-fix-two-potential-mem-leaks
+++ a/drivers/message/fusion/mptbase.c
@@ -1408,18 +1408,18 @@ mpt_attach(struct pci_dev *pdev, const s
struct proc_dir_entry *dent, *ent;
#endif
+ if (mpt_debug_level)
+ printk(KERN_INFO MYNAM ": mpt_debug_level=%xh\n",
mpt_debug_level);
+
+ if (pci_enable_device(pdev))
+ return r;
+
ioc = kzalloc(sizeof(MPT_ADAPTER), GFP_ATOMIC);
if (ioc == NULL) {
printk(KERN_ERR MYNAM ": ERROR - Insufficient memory to add
adapter!\n");
return -ENOMEM;
}
-
ioc->debug_level = mpt_debug_level;
- if (mpt_debug_level)
- printk(KERN_INFO MYNAM ": mpt_debug_level=%xh\n",
mpt_debug_level);
-
- if (pci_enable_device(pdev))
- return r;
dinitprintk(ioc, printk(KERN_WARNING MYNAM ": mpt_adapter_install\n"));
@@ -1428,6 +1428,7 @@ mpt_attach(struct pci_dev *pdev, const s
": 64 BIT PCI BUS DMA ADDRESSING SUPPORTED\n"));
} else if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)) {
printk(KERN_WARNING MYNAM ": 32 BIT PCI BUS DMA ADDRESSING NOT
SUPPORTED\n");
+ kfree(ioc);
return r;
}
_
-
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