The patch titled
char: mxser_new, check request_region retvals
has been added to the -mm tree. Its filename is
char-mxser_new-check-request_region-retvals.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: char: mxser_new, check request_region retvals
From: Jiri Slaby <jirislaby@xxxxxxxxx>
mxser_new, check request_region retvals
Return values of (pci_)request_region should be checked and error should be
returned if something is in bad state.
Signed-off-by: Jiri Slaby <jirislaby@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
drivers/char/mxser_new.c | 21 +++++++++++++++++----
1 file changed, 17 insertions(+), 4 deletions(-)
diff -puN drivers/char/mxser_new.c~char-mxser_new-check-request_region-retvals drivers/char/mxser_new.c
--- a/drivers/char/mxser_new.c~char-mxser_new-check-request_region-retvals
+++ a/drivers/char/mxser_new.c
@@ -622,19 +622,24 @@ static int __init mxser_get_PCI_conf(int
{
unsigned int i, j;
unsigned long ioaddress;
+ int retval;
/* io address */
brd->board_type = board_type;
brd->nports = mxser_numports[board_type - 1];
ioaddress = pci_resource_start(pdev, 2);
- pci_request_region(pdev, 2, "mxser(IO)");
+ retval = pci_request_region(pdev, 2, "mxser(IO)");
+ if (retval)
+ goto err;
for (i = 0; i < brd->nports; i++)
brd->ports[i].ioaddr = ioaddress + 8 * i;
/* vector */
ioaddress = pci_resource_start(pdev, 3);
- pci_request_region(pdev, 3, "mxser(vector)");
+ retval = pci_request_region(pdev, 3, "mxser(vector)");
+ if (retval)
+ goto err_relio;
brd->vector = ioaddress;
/* irq */
@@ -674,6 +679,10 @@ static int __init mxser_get_PCI_conf(int
brd->ports[i].baud_base = 921600;
}
return 0;
+err_relio:
+ pci_release_region(pdev, 2);
+err:
+ return retval;
}
static int __init mxser_init(void)
@@ -3009,8 +3018,12 @@ static int __init mxser_get_ISA_conf(int
brd->nports = 8;
else
brd->nports = 4;
- request_region(brd->ports[0].ioaddr, 8 * brd->nports, "mxser(IO)");
- request_region(brd->vector, 1, "mxser(vector)");
+ if (!request_region(brd->ports[0].ioaddr, 8 * brd->nports, "mxser(IO)"))
+ return MXSER_ERR_IOADDR;
+ if (!request_region(brd->vector, 1, "mxser(vector)")) {
+ release_region(brd->ports[0].ioaddr, 8 * brd->nports);
+ return MXSER_ERR_VECTOR;
+ }
return brd->nports;
}
_
Patches currently in -mm which might be from jirislaby@xxxxxxxxx are
origin.patch
git-watchdog.patch
pci-mxser-pci-refcounts.patch
mxser-make-an-experimental-clone.patch
char-mxser_new-correct-include-file.patch
char-mxser_new-upgrade-to-191.patch
char-mxser_new-rework-to-allow-dynamic-structs.patch
char-mxser_new-kill-unneeded-memsets.patch
char-mxser_new-use-__devinit-macros.patch
char-mxser_new-pci_request_region-for-pci-regions.patch
char-mxser_new-check-request_region-retvals.patch
hisax-niccy-cleanup.patch
-
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