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powerpc/powernv/pci: Use kmalloc_array() in two functions 

Use kmalloc_array(), which checks for overflow of the multiplication,
rather than doing it by hand.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Markus Elfring 2016-08-24 22:26:37 +02:00 committed by Michael Ellerman
parent 4ab2537c42
commit fb37e12896
1 changed files with 6 additions and 3 deletions
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9
arch/powerpc/platforms/powernv/pci-ioda.c
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@ -1326,7 +1326,9 @@ static int pnv_pci_vf_assign_m64(struct pci_dev *pdev, u16 num_vfs)
else else
m64_bars = 1; m64_bars = 1;
pdn->m64_map = kmalloc(sizeof(*pdn->m64_map) * m64_bars, GFP_KERNEL); pdn->m64_map = kmalloc_array(m64_bars,
sizeof(*pdn->m64_map),
GFP_KERNEL);
if (!pdn->m64_map) if (!pdn->m64_map)
return -ENOMEM; return -ENOMEM;
/* Initialize the m64_map to IODA_INVALID_M64 */ /* Initialize the m64_map to IODA_INVALID_M64 */
@ -1593,8 +1595,9 @@ int pnv_pci_sriov_enable(struct pci_dev *pdev, u16 num_vfs)
/* Allocating pe_num_map */ /* Allocating pe_num_map */
if (pdn->m64_single_mode) if (pdn->m64_single_mode)
pdn->pe_num_map = kmalloc(sizeof(*pdn->pe_num_map) * num_vfs, pdn->pe_num_map = kmalloc_array(num_vfs,
GFP_KERNEL); sizeof(*pdn->pe_num_map),
GFP_KERNEL);
else else
pdn->pe_num_map = kmalloc(sizeof(*pdn->pe_num_map), GFP_KERNEL); pdn->pe_num_map = kmalloc(sizeof(*pdn->pe_num_map), GFP_KERNEL);