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authorMichael Bringmann <mwb@linux.ibm.com>2020-01-15 08:53:59 -0600
committerMichael Ellerman <mpe@ellerman.id.au>2020-01-26 00:11:37 +1100
commitf1dbc1c5c70d0d4c60b5d467ba941fba167c12f6 (patch)
tree7d4949332ee66f24ca35f761c30e0809471bb92e
parent736bcdd3a9fc672af33fb83230ecd0570ec38ec6 (diff)
powerpc/pseries/lparcfg: Fix display of Maximum Memory
Correct overflow problem in calculation and display of Maximum Memory value to syscfg. Signed-off-by: Michael Bringmann <mwb@linux.ibm.com> [mpe: Only n_lmbs needs casting to unsigned long] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/5577aef8-1d5a-ca95-ff0a-9c7b5977e5bf@linux.ibm.com
-rw-r--r--arch/powerpc/platforms/pseries/lparcfg.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/platforms/pseries/lparcfg.c b/arch/powerpc/platforms/pseries/lparcfg.c
index e33e8bc4b69b..38c306551f76 100644
--- a/arch/powerpc/platforms/pseries/lparcfg.c
+++ b/arch/powerpc/platforms/pseries/lparcfg.c
@@ -435,10 +435,10 @@ static void maxmem_data(struct seq_file *m)
{
unsigned long maxmem = 0;
- maxmem += drmem_info->n_lmbs * drmem_info->lmb_size;
+ maxmem += (unsigned long)drmem_info->n_lmbs * drmem_info->lmb_size;
maxmem += hugetlb_total_pages() * PAGE_SIZE;
- seq_printf(m, "MaxMem=%ld\n", maxmem);
+ seq_printf(m, "MaxMem=%lu\n", maxmem);
}
static int pseries_lparcfg_data(struct seq_file *m, void *v)