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powerpc/sysdev: Add missing of_node_put()s

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Add of_node_put() in various paths to drop references once they are no
longer needed.

Signed-off-by: Liang He <windhl@126.com>
[mpe: Rewrite change log]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220620130221.4073228-1-windhl@126.com
This commit is contained in:
Liang He 2022-06-20 21:02:21 +08:00 committed by Michael Ellerman
parent cd772e659d
commit 3d31adc47e
3 changed files with 23 additions and 7 deletions
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6
arch/powerpc/sysdev/fsl_pci.c
View file

@ -181,6 +181,7 @@ static int setup_one_atmu(struct ccsr_pci __iomem *pci,
static bool is_kdump(void)
{
struct device_node *node;
bool ret;
node = of_find_node_by_type(NULL, "memory");
if (!node) {
@ -188,7 +189,10 @@ static bool is_kdump(void)
return false;
}
return of_property_read_bool(node, "linux,usable-memory");
ret = of_property_read_bool(node, "linux,usable-memory");
of_node_put(node);
return ret;
}
/* atmu setup for fsl pci/pcie controller */

9
arch/powerpc/sysdev/mpic_msgr.c
View file

@ -121,6 +121,7 @@ static unsigned int mpic_msgr_number_of_blocks(void)
count += 1;
}
of_node_put(aliases);
}
return count;
@ -144,12 +145,18 @@ static int mpic_msgr_block_number(struct device_node *node)
for (index = 0; index < number_of_blocks; ++index) {
struct property *prop;
struct device_node *tn;
snprintf(buf, sizeof(buf), "mpic-msgr-block%d", index);
prop = of_find_property(aliases, buf, NULL);
if (node == of_find_node_by_path(prop->value))
tn = of_find_node_by_path(prop->value);
if (node == tn) {
of_node_put(tn);
break;
}
of_node_put(tn);
}
of_node_put(aliases);
return index == number_of_blocks ? -1 : index;
}

15
arch/powerpc/sysdev/xive/native.c
View file

@ -579,12 +579,12 @@ bool __init xive_native_init(void)
/* Resource 1 is HV window */
if (of_address_to_resource(np, 1, &r)) {
pr_err("Failed to get thread mgmnt area resource\n");
return false;
goto err_put;
}
tima = ioremap(r.start, resource_size(&r));
if (!tima) {
pr_err("Failed to map thread mgmnt area\n");
return false;
goto err_put;
}
/* Read number of priorities */
@ -612,7 +612,7 @@ bool __init xive_native_init(void)
/* Resource 2 is OS window */
if (of_address_to_resource(np, 2, &r)) {
pr_err("Failed to get thread mgmnt area resource\n");
return false;
goto err_put;
}
xive_tima_os = r.start;
@ -624,7 +624,7 @@ bool __init xive_native_init(void)
rc = opal_xive_reset(OPAL_XIVE_MODE_EXPL);
if (rc) {
pr_err("Switch to exploitation mode failed with error %lld\n", rc);
return false;
goto err_put;
}
/* Setup some dummy HV pool VPs */
@ -634,10 +634,15 @@ bool __init xive_native_init(void)
if (!xive_core_init(np, &xive_native_ops, tima, TM_QW3_HV_PHYS,
max_prio)) {
opal_xive_reset(OPAL_XIVE_MODE_EMU);
return false;
goto err_put;
}
of_node_put(np);
pr_info("Using %dkB queues\n", 1 << (xive_queue_shift - 10));
return true;
err_put:
of_node_put(np);
return false;
}
static bool xive_native_provision_pages(void)